Hello,
I had a instance of gitlab-ce and I updated it with apt upgrade. Since then, it is not working.
It was not very used, so I have made a backup and tried to reinstall it from scratch and it still doesn’t work.
If someone have the answer, it would be great !
Here is the output of gitlab-ctl tail.
If you haven’t yet, give the instance a few minutes. I honestly do not know the root cause, but the whole system usually takes a few minutes to startup and before reachable from the outer world.
Hi @ultrusse, welcome to the GitLab community forum! 
What version of GitLab were you using before the upgrade?
If GitLab was not updated in the past two months, I suggest reverting to backup and folowing the upgrade recommendations here: https://docs.gitlab.com/ee/policy/maintenance.html#upgrade-recommendations
If you updated GitLab regularly before this occurred, I suggest trying gitlab-ctl reconfigure followed by gitlab-ctl restart to see if this resolves the issue.
Let us know how it goes.
Hello,
Thank you for your answers. I didn’t know these recommendations.
I managed to downgrade to 12.10.11 (and restore all the data/secrets).
I followed the recommendation and tried to upload to 13.0.1-ce.0.
I trying gitlab-ctl reconfigure && gitlab-ctl restart and wait for 10 minutes.
But I still got 502 error.