Cannot list Docker tags of the project

Summary

I am trying to see Docker tags for the project but I am getting unknown errors. use an ordered list. -->

Example Project

• Open https://gitlab.com/peer/doc/container_registry/
• Click peer/doc tags (currently it says 1 Tag is under there)
• An error is shown, but no message:

Also the content of the list is from peer/doc/pipeline, the real tag under peer/doc is not shown.

Output of checks

This bug happens on GitLab.com.