BVG servers are returning errors with the API version used.

[FredNandrin]

The issue seems to be coming from hafas-client/p/bvg/index.js :
BaseProfile is using "ver": "1.44" for querying https://bvg-apps-ext.hafas.de/bin/mgate.exe
Current API version seems to be 1.76 and BVG Website is using 1.72

Structure has probably changed a bit based on their new application rollout (https://www.bvg.de/de/abos-und-tickets/alle-apps/ticket-app/ticket-app-beta-test)

Querying BVG server with ver 1.45 returns

"svcResL": [
        {
            "id": "1|1|",
            "meth": "LocMatch",
            "err": "CGI_NO_SERVER",
            "errTxt": "CGI: server could not be reached",
            "errTxtOut": "Während der Suche ist ein interner Fehler aufgetreten"
        }

where ver 1.44 and 1.46 are working fine.
This may help fixing the data issue as BVG server seems to block this version.

[FredNandrin]

Hm... Now version 1.45 is working fine and 1.46 is returning the same error...
This will probably require to move to the current version to ensure their servers are kept stable...
On hafas client, the error shown is

{
    "message": "CLIENTVERSION: HCI Core: Invalid client version",
    "isHafasError": true,
    "code": null,
    "isCausedByServer": false,
    "hafasCode": "CLIENTVERSION",
    "url": "https://bvg-apps-ext.hafas.de/bin/mgate.exe?",
    "hafasResponseId": "ju7q6hwuw46ny48x",
    "hafasMessage": "HCI Core: Invalid client version"
}

[FredNandrin]

Ok... forget all I said ...
Seems that the version says it failed because the authentication is not working properly (anymore).
Updating the auth.aid in hafas-client/p/bvg/base.json file seems to fix the issue...

[FredNandrin]

public-transport/hafas-client#323

[FredNandrin]

Nothing to be fixed here.