500 Error when I access Project

Summary

When I want create new Project or want access old Project's General, 500 Error will be happened.

Steps to reproduce

Access old Project's General and create new project.

Example Project

https://gitlab.com/r1235613/I_Cannot_add_new_project

https://gitlab.com/r1235613/aunt_test

What is the current bug behavior?

500 Error

What is the expected correct behavior?

General and Project's Hone page

Relevant logs and/or screenshots

https://www.youtube.com/playlist?list=PLJRD_4OOWbuYh23rmawjTaMDCSbhrTiCJ

500

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Output of checks

This bug happens on GitLab.com