Hello Martin Popotnig
In this time we have develop a new module replace for module JO Facebook Events and JO Facebook Events Pro allow you get your Facebook events and shown in your site in the time Facebook fix the problems. You can download and install module in file attachment below. If you want get your Facebook events in module config in " Page Tabs" please help me set "Events"
After Facebook fixed the problems we will updated again module JO Facebook Events and JO Facebook Events Pro and will notify and send you new version
Best regards
Bach Pham