Editor Issue

Ever since I removed CriticalCSS I have been having editor issues on my subdirectory sites.

When I try to edit posts this is what I see https://postimg.cc/F7Gt13T3

On a different subdirectory site I cannot even see the content in the editor at all. Here is what happens https://fromsmash.com/H7v64.088w-et

Could removing CriticalCSS be the cause of this? I ask because I have a dedicated server and the techs think it is a CSS issue.

The page I need help with: [log in to see the link]