Cannot update gitlab

Hi guys,

Currently Im at GitLab 12.0.1 (see screenshot)

When I update because I need to with sudo apt-get update && sudo apt-get install gitlab-ce I get trouble which I dont know how to fix:

There was an error running gitlab-ctl reconfigure:

bash[migrate gitlab-rails database] (gitlab::database_migrations line 54) had an error: Mixlib::ShellOut::ShellCommandFailed: Expected process to exit with [0], but received '1'

---- Begin output of "bash" "/tmp/chef-script20190909-21065-awlaey" ----

STDOUT: rake aborted!

Exception: Your database is missing the 'merge_request_id' column from the 'vulnerability_feedback' table that is present for GitLab EE.

Even though it looks like you're running a CE installation, it appears

you may have installed GitLab EE at some point. To migrate to GitLab 12.0:

View the full log as pdf here

Im a beginner with this terminal stuff to update Gitlab etc, would love to hear what I should do as I’ve . already wasted some hours on figuring this out.

Thanks in advance (-:

It looks like a pretty well-known problem, there are several threads on this forum about it.

Have you tried following the procedure that should follow the quoted part of the output?