On Deactivation all javascript breaks

Hey, i was trying your plugin with critical css initially. Everything seemed to work correctly except font-awesome was looking for its local files in /build_main/. There is no file /build_main/ on the server. Now when I disable the plugin i get the error
“Refused to apply style from ‘<URL>’ because its MIME type (‘text/html’) is not a supported stylesheet MIME type, and strict MIME checking is enabled.” and it default looks for all my js in /build_main/. I can’t figure out what is causing the issue.
Any suggestions would be appreciated. Thanks