Hello, 
I can access user panel however I can not edit php.ini files with php.ini editor. This bug appeared in several servers where using CWP.
So this is what I get 

If I change to another domain it show's like that: 

 and the error in the console. 

.
So, as I mentioned, this bug is not only in this server.  I'm using cwp on another server and same bug appeared about 2 weeks ago and still exists. Please help me, because, I can not change needed ini settings for domain.