Unable to change field values of cases module

I have tried to edit my record in the case module, but I do not know why I can’t able to change some field values, what am I supposed to check first, and how to fix this issue?

Also, you could check log files and share screenshots here.

2024-02-0211-27-27-ezgif.com-video-to-gif-converter
I didn’t get any error logs in my log file.

Check here!

Username: will
Password: will

SuiteCRM 8