I am running a project on gitlab.com with CI pipeline integration. I have set up a specific CI runner, and I can see that it is successfully connected to gitlab.com. However when I try to trigger a build (manually or via push), I get the following error in the log output of the runner:
Checking for builds... nothing runner=540f105c Feeding runners to channel builds=0 Feeding runners to channel builds=0 WARNING: Checking for builds... failed runner=540f105c status=500 Internal Server Error
How can I go ahead and debug this further? As the server mentioned in the error should probably be gitlab.com, I cannot have a look at the server logs to see which error this is.
Thank you for your help and best regards,