Hi,
I don't have a login so I can't debug fully, but I note from using the browser F12 developer tools that they're using a few javascript libraries. I don't know how many will be pertinent, but I would try adding these:
cdnjs.cloudflare.com
cdn.jsdeliver.net
jsmaxmind.com
cdn.jsdeliver.net
There may well be more, but without the login it's hard to tell. One other thing that catches out a few CensorNet SWG users is the content servers category. It's hidden away in the policies under Categories -> Internet, Software, Media & Ads -> Streaming Media and Content Servers -> Content Servers. It's often desirable to allow this category in your policies as most content delivery networks will fall under these.
If the above URLs don't sort out the issue, the best bet would be to contact CensorNet support, as they can do a remote debugging session with you.