This question asked by coderss but restarting the computer seems to noneffective.
422 The change you requested was rejected. Make sure you have access to the thing you tried to change. Please contact your GitLab administrator if you think this is a mistake.
I have above error in Firefox under Linux but I have access in Chromium. That's looks like typical cookie problem.
I tried clear all Gitlab related cookies then restarted computer without any new sign in attempt. and restarted computer :) yeah I just try
But still same error, same browser.
How can I handle this problem?
This error also occurs at forgot password section and in private tab of Firefox.
Is there another Gitlab related cookie?
The issue should be fixed not only with cookies as discribed, but also with a correction of time system. I faced exactly the same problem: unable to connect with Firefox, even with a reset of cookies, but I was able to connect with Chrome. (That sounds strange because my clock system was false even on Chrome.)
The solution came with this very short explanation:
"it's was because my local time zone wasn't set up properly (and was messing with cookies)" Source: https://www.reddit.com/r/gitlab/comments/cv7pov/422_error_on_wwwgitlabcomuserssignin_and/ey7l7lz?utm_source=share&utm_medium=web2x&context=3