One of our user having problem with loading a project any other project loads fine

Today we encountered that one of our devs, having a problem with loading one explicit projectID: (91ebf0)

We’ve tried to remove and invite him again to this explicit project, but it also doesn’t work, and it didn’t help at all.

https://app.litetracker.com/api/v1/projects/91ebf0/project_sections
[Error] Failed to load resource: the server responded with a status of 500 () (project_sections, line 0)