Hello,
I’m trying to check my containers in container registry and I’m getting this:
Need some helpe here. 
Is this on GitLab.com, or a self-managed GitLab instance?
If it is the latter, run a sudo gitlab-ctl tail command to stream logs on the GitLab server, and then reproduce the issue again in your browser. This will help you observe the specific error on the backend to troubleshoot it further.
Was the page previously working? Does this happen only on select projects, or all projects? How was the container registry setup and configured?