Hey @Teubl,
I’m really sorry to hear about this incompatibility π Brian’s summation of the issues in that thread is spot-on, and so I will quote it here:
In this case the Bridge Theme uses Ajax to load pages and when it does it does not load the scripts and stylesheets of that page. So in the case of the Events Calendar it looks so bad because the theme did not load the scripts or stylesheets after the ajax call.
Are you able to turn off Ajax loading in the theme? That should resolve the issue.
If you can turn off the theme’s AJAX, then the pages might load.
Otherwise getting the pieces of software to work together would take a significant amount of custom coding, which we unfortunately cannot help with π
Sincerely,
George