HTTP 500 when displaying runner management

[vanyle]

Description

When accessing https://mygiteaurl.com/admin/actions/runners/ I get a 500 error.

An error occurred:

Render failed, failed to render template: admin/actions, error: template error: builtin(bindata):shared/actions/runner_list:76:40 : executing "shared/actions/runner_list" at <.BelongsToOwnerName>: error calling BelongsToOwnerName: runtime error: invalid memory address or nil pointer dereference
----------------------------------------------------------------------
						<td><span data-tooltip-content="{{.BelongsToOwnerName}}">{{.BelongsToOwnerType.LocaleString ctx.Locale}}</span></td>
						                                  ^
----------------------------------------------------------------------

The issue persist after restarting Gitea. I think my database is in an incorrect state.
It occured after messing with creating Gitea Runners.

Gitea Version

1.21.10

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

https://gist.github.com/vanyle/9a2bcdc8da1a17d2c692ebe8965de8b7

Screenshots

Git Version

2.40.1

Operating System

Linux (Ubuntu)

How are you running Gitea?

I am using Docker.
sudo docker compose up

Database

SQLite

[Zettat123]

Steps to reproduce the bug:

1. Create a repo. Copy the runner registration token of the repo.
2. Delete the repo.
3. Use the token copied in step 1 to register a runner. The runner can be successfully registered.
4. Visit the runner list page then the error will appear.