Just found and installed this as a plug but all I get is a
"404 - File or directory not found. The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable."

This is the file path on our PLESK end "thealliedlegion.com \ httpsdocs \ wp-content \ plugins \ wpforo \ wpf-themes \ classic" I've checked and we have the colors.css

I've also tried uninstalling the forum and installing it. I even created a new subdomain to test it out on an empty wordpress site but it still gives me that same error.

Any advice or help?