Problem playing on web browser

[Ashti]

Ashti 9 minutes ago
I play Catan on my web browser using Google Chrome. I have never had a problem until the last few weeks. When I keep getting a message:
'Catanuniverse.com says -
An error occurred running the Unity content on this page. See your browser JavaScript console for more info. The error was: Uncaught NetworkError: Failed to execute 'sent' on 'XMLHttRequest': Failed to load 'https://cdn.catancdn.de/production/bundle/1fe3a3708/WebPlayer/WebPlayer'.

This means I can only play against AI's.
What has changed? How do I fix this?
I really miss playing and don't know what to do. PLEASE HELP!!!