Standard working, Pro isn’t

Starting with the standard version of the plugin, everything works fine. When upgrading to Pro the captcha functionality stops working. Console shows this on the login page:

“Firefox can’t establish a connection to the server at ws://46.101.100.97:8020/.”

I do not have ublock origin turned on. Because of the inability to pass the captcha I can’t even login as admin now, which is fine because I’ll just rebuild the thing again, but what could be causing this problem?

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