Update 13.0.4 to 14.0.3 via web interface results in Internal Server Error

[tester1230980582340923-409]

Steps to reproduce

1. Update from 13.0.4 to 14.0.3 via web interface with data dir on external storage via symlink

Expected behaviour

When applying the update, all the internal checks seem to pass and the upgrade installs successfully.

Actual behaviour

After the upgrade, the nextcloud instance returns an internal server error. I resolved this by using the occ upgrade command via terminal sudo -u www-data php /var/www/nextcloud/occ upgrade. The only error messages whilst performing the upgrade were related to disabling incompatible apps. I believe this may be permissions related, but it seems clear that the web interface updater is not robust enough.

Server configuration

Operating system:
Ubuntu 16 LTS
Web server:
Apache
Database:
MySQL
PHP version:
7.0
Nextcloud version: (see Nextcloud admin page)
14.0.3
Updated from an older Nextcloud/ownCloud or fresh install:
13.0.4
Where did you install Nextcloud from:

Signing status:

Signing status

No errors have been found.

List of activated apps:

App list

Enabled:
  - accessibility: 1.0.1
  - activity: 2.7.0
  - apporder: 0.5.0
  - bruteforcesettings: 1.1.0
  - calendar: 1.6.1
  - checksum: 0.4.1
  - cloud_federation_api: 0.0.1
  - cms_pico: 0.9.7
  - comments: 1.4.0
  - contacts: 2.1.6
  - dav: 1.6.0
  - deck: 0.4.1
  - drawio: 0.9.1
  - federatedfilesharing: 1.4.0
  - federation: 1.4.0
  - files: 1.9.0
  - files_external: 1.5.0
  - files_markdown: 2.0.4
  - files_pdfviewer: 1.3.2
  - files_sharing: 1.6.2
  - files_texteditor: 2.6.0
  - files_trashbin: 1.4.1
  - files_versions: 1.7.1
  - files_videoplayer: 1.3.0
  - firstrunwizard: 2.3.0
  - gallery: 18.1.0
  - groupfolders: 1.3.3
  - logreader: 2.0.0
  - lookup_server_connector: 1.2.0
  - mindmaps: 0.1.0
  - nextcloud_announcements: 1.3.0
  - notes: 2.4.2
  - notifications: 2.2.1
  - oauth2: 1.2.1
  - password_policy: 1.4.0
  - polls: 0.8.3
  - provisioning_api: 1.4.0
  - serverinfo: 1.4.0
  - sharebymail: 1.4.0
  - support: 1.0.0
  - survey_client: 1.2.0
  - systemtags: 1.4.0
  - tasks: 0.9.7
  - theming: 1.5.0
  - twofactor_backupcodes: 1.3.1
  - updatenotification: 1.4.1
  - w2g2: 2.2.3
  - workflowengine: 1.4.0
Disabled:
  - admin_audit
  - admin_notifications
  - announcementcenter
  - circles
  - encryption
  - external
  - files_accesscontrol
  - files_automatedtagging
  - files_reader
  - mail
  - ojsxc
  - passman
  - quota_warning
  - rainloop
  - ransomware_protection
  - richdocuments
  - spreed
  - unsplashlogin
  - user_external
  - user_ldap

Nextcloud configuration:

Config report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "127.0.0.1",
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "https:\/\/cloud.wgsair.com",
        "dbtype": "mysql",
        "version": "14.0.3.0",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_smtpauthtype": "PLAIN",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpsecure": "tls",
        "maintenance": false,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "mail_smtpauth": 1,
        "mail_smtpport": "587",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "theme": "",
        "loglevel": 2,
        "updater.secret": "***REMOVED SENSITIVE VALUE***"
    }
}

Are you using external storage, if yes which one: local/smb/sftp/...
yes, local
Are you using encryption: yes/no
yes
Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
no

Client configuration

Browser:
chrome
Operating system:
windows 7

[nextcloud-bot]

GitMate.io thinks possibly related issues are #11784 (14.0.3), #4579 (Update to 11.0.3 failed (web updater) ), #2269 (updating spreed.Me to 0.3.4), #10095 (Update 13.0.4 Failed), and #9815 (No update 13.0.3 possible).

[MorrisJobke]

@tester1230980582340923-409 Could you check the nextcloud.log for the stack trace of this internal server error?

[tester1230980582340923-409]

What should I search for in the log?

It looks like it might be an error with the calendar app because it's got mountains of errors about calendar app upgrade and permissions, but I can't see a specific reference to the 500 error.

[MorrisJobke]

What should I search for in the log?

It looks like it might be an error with the calendar app because it's got mountains of errors about calendar app upgrade and permissions, but I can't see a specific reference to the 500 error.

On the page with the internal server error there was a reference - that would be the one we need. Maybe you can look into the logs and check the first one that is on log level 3 or 4 (error and fatal) that happened after the upgrade.

[tester1230980582340923-409]

Ah. I didn't log it, apologies. I did notice the location of the request for these two logs which was for my local IP address so I imagine it was when I double checked it was broken over the LAN.

{"reqId":"IPFwkvyWtJ1t8TOEXedH","level":3,"time":"2018-11-02T08:55:16+00:00","remoteAddr":"***","user":"--","app":"index","method":"GET","url":"\/cloud\/index.php\/login","message":{"Exception":"Error","Message":"Class 'OCP\\Config' not found","Code":0,"Trace":[{"file":"\/var\/www\/cloud\/apps\/files_reader\/lib\/Hooks.php","line":41,"function":"get","class":"OCA\\Files_Reader\\Config","type":"::","args":["epub_enable","true"]},{"file":"\/var\/www\/cloud\/lib\/private\/legacy\/hook.php","line":106,"function":"announce_settings","class":"OCA\\Files_Reader\\Hooks","type":"::","args":[{"array":{"oc_debug":"false","oc_isadmin":"false","backendAllowsPasswordConfirmation":"true","oc_dataURL":"false","oc_webroot":"\"\/cloud\"","oc_appswebroots":"{\"activity\":\"\/cloud\/apps\/activity\",\"admin_notifications\":\"\/cloud\/apps\/admin_notifications\",\"announcementcenter\":\"\/cloud\/apps\/announcementcenter\",\"apporder\":\"\/cloud\/apps\/apporder\",\"bruteforcesettings\":\"\/cloud\/apps\/bruteforcesettings\",\"calendar\":\"\/cloud\/apps\/calendar\",\"checksum\":\"\/cloud\/apps\/checksum\",\"circles\":\"\/cloud\/apps\/circles\",\"cloud_federation_api\":\"\/cloud\/apps\/cloud_federation_api\",\"cms_pico\":\"\/cloud\/apps\/cms_pico\",\"comments\":\"\/cloud\/apps\/comments\",\"contacts\":\"\/cloud\/apps\/contacts\",\"dav\":\"\/cloud\/apps\/dav\",\"deck\":\"\/cloud\/apps\/deck\",\"drawio\":\"\/cloud\/apps\/drawio\",\"federatedfilesharing\":\"\/cloud\/apps\/federatedfilesharing\",\"federation\":\"\/cloud\/apps\/federation\",\"files\":\"\/cloud\/apps\/files\",\"files_accesscontrol\":\"\/cloud\/apps\/files_accesscontrol\",\"files_automatedtagging\":\"\/cloud\/apps\/files_automatedtagging\",\"files_external\":\"\/cloud\/apps\/files_external\",\"files_markdown\":\"\/cloud\/apps\/files_markdown\",\"files_pdfviewer\":\"\/cloud\/apps\/files_pdfviewer\",\"files_reader\":\"\/cloud\/apps\/files_reader\",\"files_sharing\":\"\/cloud\/apps\/files_sharing\",\"files_texteditor\":\"\/cloud\/apps\/files_texteditor\",\"files_trashbin\":\"\/cloud\/apps\/files_trashbin\",\"files_versions\":\"\/cloud\/apps\/files_versions\",\"files_videoplayer\":\"\/cloud\/apps\/files_videoplayer\",\"firstrunwizard\":\"\/cloud\/apps\/firstrunwizard\",\"gallery\":\"\/cloud\/apps\/gallery\",\"groupfolders\":\"\/cloud\/apps\/groupfolders\",\"logreader\":\"\/cloud\/apps\/logreader\",\"lookup_server_connector\":\"\/cloud\/apps\/lookup_server_connector\",\"mindmaps\":\"\/cloud\/apps\/mindmaps\",\"nextcloud_announcements\":\"\/cloud\/apps\/nextcloud_announcements\",\"notes\":\"\/cloud\/apps\/notes\",\"notifications\":\"\/cloud\/apps\/notifications\",\"oauth2\":\"\/cloud\/apps\/oauth2\",\"passman\":\"\/cloud\/apps\/passman\",\"password_policy\":\"\/cloud\/apps\/password_policy\",\"polls\":\"\/cloud\/apps\/polls\",\"provisioning_api\":\"\/cloud\/apps\/provisioning_api\",\"quota_warning\":\"\/cloud\/apps\/quota_warning\",\"rainloop\":\"\/cloud\/apps\/rainloop\",\"ransomware_protection\":\"\/cloud\/apps\/ransomware_protection\",\"serverinfo\":\"\/cloud\/apps\/serverinfo\",\"sharebymail\":\"\/cloud\/apps\/sharebymail\",\"survey_client\":\"\/cloud\/apps\/survey_client\",\"systemtags\":\"\/cloud\/apps\/systemtags\",\"tasks\":\"\/cloud\/apps\/tasks\",\"theming\":\"\/cloud\/apps\/theming\",\"twofactor_backupcodes\":\"\/cloud\/apps\/twofactor_backupcodes\",\"updatenotification\":\"\/cloud\/apps\/updatenotification\",\"w2g2\":\"\/cloud\/apps\/w2g2\",\"workflowengine\":\"\/cloud\/apps\/workflowengine\"}","datepickerFormatDate":"\"M\\\/d\\\/yy\"","nc_lastLogin":0,"nc_pageLoad":1541148916,"dayNames":"[\"Sunday\",\"Monday\",\"Tuesday\",\"Wednesday\",\"Thursday\",\"Friday\",\"Saturday\"]","dayNamesShort":"[\"Sun.\",\"Mon.\",\"Tue.\",\"Wed.\",\"Thu.\",\"Fri.\",\"Sat.\"]","dayNamesMin":"[\"Su\",\"Mo\",\"Tu\",\"We\",\"Th\",\"Fr\",\"Sa\"]","monthNames":"[\"January\",\"February\",\"March\",\"April\",\"May\",\"June\",\"July\",\"August\",\"September\",\"October\",\"November\",\"December\"]","monthNamesShort":"[\"Jan.\",\"Feb.\",\"Mar.\",\"Apr.\",\"May.\",\"Jun.\",\"Jul.\",\"Aug.\",\"Sep.\",\"Oct.\",\"Nov.\",\"Dec.\"]","firstDay":"0","oc_config":"{\"session_lifetime\":1440,\"session_keepalive\":true,\"version\":\"14.0.3.0\",\"versionstring\":\"14.0.3\",\"enable_avatars\":true,\"lost_password_link\":null,\"modRewriteWorking\":false,\"sharing.maxAutocompleteResults\":0,\"sharing.minSearchStringLength\":0,\"blacklist_files_regex\":\"\\\\.(part|filepart)$\"}","oc_appconfig":"{\"core\":{\"defaultExpireDateEnabled\":false,\"defaultExpireDate\":null,\"defaultExpireDateEnforced\":null,\"enforcePasswordForPublicLink\":false,\"enableLinkPasswordByDefault\":false,\"sharingDisabledForUser\":false,\"resharingAllowed\":true,\"remoteShareAllowed\":true,\"federatedCloudShareDoc\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/14\\\/go.php?to=user-sharing-federated\",\"allowGroupSharing\":true},\"files\":{\"max_chunk_size\":10485760}}","oc_defaults":"{\"entity\":\"WGS Cloud\",\"name\":\"WGS Cloud\",\"title\":\"WGS Cloud\",\"baseUrl\":\"https:\\\/\\\/www.wgsair.com\",\"syncClientUrl\":\"https:\\\/\\\/nextcloud.com\\\/install\\\/#install-clients\",\"docBaseUrl\":\"https:\\\/\\\/docs.nextcloud.com\",\"docPlaceholderUrl\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/14\\\/go.php?to=PLACEHOLDER\",\"slogan\":\"Accessible Data Storage\",\"logoClaim\":\"\",\"shortFooter\":\"<a href=\\\"https:\\\/\\\/www.wgsair.com\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">WGS Cloud<\\\/a> \\u2013 Accessible Data Storage\",\"longFooter\":\"<a href=\\\"https:\\\/\\\/www.wgsair.com\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">WGS Cloud<\\\/a> \\u2013 Accessible Data Storage\",\"folder\":\"\"}","oc_capabilities":"{\"core\":{\"pollinterval\":60,\"webdav-root\":\"remote.php\\\/webdav\"},\"bruteforce\":{\"delay\":0},\"activity\":{\"apiv2\":[\"filters\",\"filters-api\",\"previews\",\"rich-strings\"]},\"dav\":{\"chunking\":\"1.0\"},\"files_sharing\":{\"api_enabled\":true,\"public\":{\"enabled\":true,\"password\":{\"enforced\":false},\"expire_date\":{\"enabled\":false},\"send_mail\":false,\"upload\":true,\"upload_files_drop\":true},\"resharing\":true,\"user\":{\"send_mail\":false,\"expire_date\":{\"enabled\":true}},\"group_sharing\":true,\"group\":{\"enabled\":true,\"expire_date\":{\"enabled\":true}},\"default_permissions\":31,\"federation\":{\"outgoing\":true,\"incoming\":true,\"expire_date\":{\"enabled\":true}},\"sharebymail\":{\"enabled\":true,\"upload_files_drop\":{\"enabled\":true},\"password\":{\"enabled\":true},\"expire_date\":{\"enabled\":true}}},\"files\":{\"bigfilechunking\":true,\"blacklisted_files\":[\".htaccess\"],\"undelete\":true,\"versioning\":true}}"}}]},{"file":"\/var\/www\/cloud\/lib\/private\/Template\/JSConfigHelper.php","line":277,"function":"emit","class":"OC_Hook","type":"::","args":["\\OCP\\Config","js",{"array":{"oc_debug":"false","oc_isadmin":"false","backendAllowsPasswordConfirmation":"true","oc_dataURL":"false","oc_webroot":"\"\/cloud\"","oc_appswebroots":"{\"activity\":\"\/cloud\/apps\/activity\",\"admin_notifications\":\"\/cloud\/apps\/admin_notifications\",\"announcementcenter\":\"\/cloud\/apps\/announcementcenter\",\"apporder\":\"\/cloud\/apps\/apporder\",\"bruteforcesettings\":\"\/cloud\/apps\/bruteforcesettings\",\"calendar\":\"\/cloud\/apps\/calendar\",\"checksum\":\"\/cloud\/apps\/checksum\",\"circles\":\"\/cloud\/apps\/circles\",\"cloud_federation_api\":\"\/cloud\/apps\/cloud_federation_api\",\"cms_pico\":\"\/cloud\/apps\/cms_pico\",\"comments\":\"\/cloud\/apps\/comments\",\"contacts\":\"\/cloud\/apps\/contacts\",\"dav\":\"\/cloud\/apps\/dav\",\"deck\":\"\/cloud\/apps\/deck\",\"drawio\":\"\/cloud\/apps\/drawio\",\"federatedfilesharing\":\"\/cloud\/apps\/federatedfilesharing\",\"federation\":\"\/cloud\/apps\/federation\",\"files\":\"\/cloud\/apps\/files\",\"files_accesscontrol\":\"\/cloud\/apps\/files_accesscontrol\",\"files_automatedtagging\":\"\/cloud\/apps\/files_automatedtagging\",\"files_external\":\"\/cloud\/apps\/files_external\",\"files_markdown\":\"\/cloud\/apps\/files_markdown\",\"files_pdfviewer\":\"\/cloud\/apps\/files_pdfviewer\",\"files_reader\":\"\/cloud\/apps\/files_reader\",\"files_sharing\":\"\/cloud\/apps\/files_sharing\",\"files_texteditor\":\"\/cloud\/apps\/files_texteditor\",\"files_trashbin\":\"\/cloud\/apps\/files_trashbin\",\"files_versions\":\"\/cloud\/apps\/files_versions\",\"files_videoplayer\":\"\/cloud\/apps\/files_videoplayer\",\"firstrunwizard\":\"\/cloud\/apps\/firstrunwizard\",\"gallery\":\"\/cloud\/apps\/gallery\",\"groupfolders\":\"\/cloud\/apps\/groupfolders\",\"logreader\":\"\/cloud\/apps\/logreader\",\"lookup_server_connector\":\"\/cloud\/apps\/lookup_server_connector\",\"mindmaps\":\"\/cloud\/apps\/mindmaps\",\"nextcloud_announcements\":\"\/cloud\/apps\/nextcloud_announcements\",\"notes\":\"\/cloud\/apps\/notes\",\"notifications\":\"\/cloud\/apps\/notifications\",\"oauth2\":\"\/cloud\/apps\/oauth2\",\"passman\":\"\/cloud\/apps\/passman\",\"password_policy\":\"\/cloud\/apps\/password_policy\",\"polls\":\"\/cloud\/apps\/polls\",\"provisioning_api\":\"\/cloud\/apps\/provisioning_api\",\"quota_warning\":\"\/cloud\/apps\/quota_warning\",\"rainloop\":\"\/cloud\/apps\/rainloop\",\"ransomware_protection\":\"\/cloud\/apps\/ransomware_protection\",\"serverinfo\":\"\/cloud\/apps\/serverinfo\",\"sharebymail\":\"\/cloud\/apps\/sharebymail\",\"survey_client\":\"\/cloud\/apps\/survey_client\",\"systemtags\":\"\/cloud\/apps\/systemtags\",\"tasks\":\"\/cloud\/apps\/tasks\",\"theming\":\"\/cloud\/apps\/theming\",\"twofactor_backupcodes\":\"\/cloud\/apps\/twofactor_backupcodes\",\"updatenotification\":\"\/cloud\/apps\/updatenotification\",\"w2g2\":\"\/cloud\/apps\/w2g2\",\"workflowengine\":\"\/cloud\/apps\/workflowengine\"}","datepickerFormatDate":"\"M\\\/d\\\/yy\"","nc_lastLogin":0,"nc_pageLoad":1541148916,"dayNames":"[\"Sunday\",\"Monday\",\"Tuesday\",\"Wednesday\",\"Thursday\",\"Friday\",\"Saturday\"]","dayNamesShort":"[\"Sun.\",\"Mon.\",\"Tue.\",\"Wed.\",\"Thu.\",\"Fri.\",\"Sat.\"]","dayNamesMin":"[\"Su\",\"Mo\",\"Tu\",\"We\",\"Th\",\"Fr\",\"Sa\"]","monthNames":"[\"January\",\"February\",\"March\",\"April\",\"May\",\"June\",\"July\",\"August\",\"September\",\"October\",\"November\",\"December\"]","monthNamesShort":"[\"Jan.\",\"Feb.\",\"Mar.\",\"Apr.\",\"May.\",\"Jun.\",\"Jul.\",\"Aug.\",\"Sep.\",\"Oct.\",\"Nov.\",\"Dec.\"]","firstDay":"0","oc_config":"{\"session_lifetime\":1440,\"session_keepalive\":true,\"version\":\"14.0.3.0\",\"versionstring\":\"14.0.3\",\"enable_avatars\":true,\"lost_password_link\":null,\"modRewriteWorking\":false,\"sharing.maxAutocompleteResults\":0,\"sharing.minSearchStringLength\":0,\"blacklist_files_regex\":\"\\\\.(part|filepart)$\"}","oc_appconfig":"{\"core\":{\"defaultExpireDateEnabled\":false,\"defaultExpireDate\":null,\"defaultExpireDateEnforced\":null,\"enforcePasswordForPublicLink\":false,\"enableLinkPasswordByDefault\":false,\"sharingDisabledForUser\":false,\"resharingAllowed\":true,\"remoteShareAllowed\":true,\"federatedCloudShareDoc\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/14\\\/go.php?to=user-sharing-federated\",\"allowGroupSharing\":true},\"files\":{\"max_chunk_size\":10485760}}","oc_defaults":"{\"entity\":\"WGS Cloud\",\"name\":\"WGS Cloud\",\"title\":\"WGS Cloud\",\"baseUrl\":\"https:\\\/\\\/www.wgsair.com\",\"syncClientUrl\":\"https:\\\/\\\/nextcloud.com\\\/install\\\/#install-clients\",\"docBaseUrl\":\"https:\\\/\\\/docs.nextcloud.com\",\"docPlaceholderUrl\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/14\\\/go.php?to=PLACEHOLDER\",\"slogan\":\"Accessible Data Storage\",\"logoClaim\":\"\",\"shortFooter\":\"<a href=\\\"https:\\\/\\\/www.wgsair.com\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">WGS Cloud<\\\/a> \\u2013 Accessible Data Storage\",\"longFooter\":\"<a href=\\\"https:\\\/\\\/www.wgsair.com\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">WGS Cloud<\\\/a> \\u2013 Accessible Data 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(Windows NT 6.1; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/70.0.3538.77 Safari\/537.36","version":"13.0.4.0"}
{"reqId":"IPFwkvyWtJ1t8TOEXedH","level":3,"time":"2018-11-02T08:55:16+00:00","remoteAddr":"***","user":"--","app":"no app in context","method":"GET","url":"\/cloud\/index.php\/login","message":{"Exception":"Symfony\\Component\\Routing\\Exception\\RouteNotFoundException","Message":"Unable to generate a URL for the named route \"theming.Theming.getImage\" as such route does not exist.","Code":0,"Trace":[{"file":"\/var\/www\/cloud\/lib\/private\/Route\/Router.php","line":337,"function":"generate","class":"Symfony\\Component\\Routing\\Generator\\UrlGenerator","type":"->","args":["theming.Theming.getImage",{"key":"logo","useSvg":true,"v":"10"},1]},{"file":"\/var\/www\/cloud\/lib\/private\/Route\/CachingRouter.php","line":60,"function":"generate","class":"OC\\Route\\Router","type":"->","args":["theming.Theming.getImage",{"key":"logo","useSvg":true,"v":"10"},false]},{"file":"\/var\/www\/cloud\/lib\/private\/URLGenerator.php","line":79,"function":"generate","class":"OC\\Route\\CachingRouter","type":"->","args":["theming.Theming.getImage",{"key":"logo","useSvg":true,"v":"10"}]},{"file":"\/var\/www\/cloud\/apps\/theming\/lib\/ThemingDefaults.php","line":227,"function":"linkToRoute","class":"OC\\URLGenerator","type":"->","args":["theming.Theming.getImage",{"key":"logo","useSvg":true,"v":"10"}]},{"file":"\/var\/www\/cloud\/lib\/public\/Defaults.php","line":187,"function":"getLogo","class":"OCA\\Theming\\ThemingDefaults","type":"->","args":[true]},{"file":"\/var\/www\/cloud\/core\/templates\/layout.guest.php","line":34,"function":"getLogo","class":"OCP\\Defaults","type":"->","args":[]},{"file":"\/var\/www\/cloud\/lib\/private\/Template\/Base.php","line":179,"args":["\/var\/www\/cloud\/core\/templates\/layout.guest.php"],"function":"include"},{"file":"\/var\/www\/cloud\/lib\/private\/Template\/Base.php","line":151,"function":"load","class":"OC\\Template\\Base","type":"->","args":["\/var\/www\/cloud\/core\/templates\/layout.guest.php",null]},{"file":"\/var\/www\/cloud\/lib\/private\/legacy\/template.php","line":207,"function":"fetchPage","class":"OC\\Template\\Base","type":"->","args":[null]},{"file":"\/var\/www\/cloud\/lib\/private\/legacy\/template.php","line":238,"function":"fetchPage","class":"OC_Template","type":"->","args":[null]},{"file":"\/var\/www\/cloud\/lib\/private\/Template\/Base.php","line":132,"function":"fetchPage","class":"OC_Template","type":"->","args":[]},{"file":"\/var\/www\/cloud\/lib\/private\/legacy\/template.php","line":359,"function":"printPage","class":"OC\\Template\\Base","type":"->","args":[]},{"file":"\/var\/www\/cloud\/index.php","line":83,"function":"printExceptionErrorPage","class":"OC_Template","type":"::","args":[{"__class__":"Error"},500]}],"File":"\/var\/www\/cloud\/3rdparty\/symfony\/routing\/Generator\/UrlGenerator.php","Line":113,"CustomMessage":"--"},"userAgent":"Mozilla\/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/70.0.3538.77 Safari\/537.36","version":"13.0.4.0"}

[MorrisJobke]

This seems to be a problem with files_reader -> duplicate of #11572

[MorrisJobke]

Solution until the app is fixed: disable it before updating (removing it from the apps folder or removing the DB entry in oc_appconfig with the appid and the configkey enabled is both a valid approach to disable it if the instance is broken).