Unfortunately I'm not able to get the Access Token but it seems that there must be an error in connecting to Facebook.
Unfortunately all other posts in this forum related to this behaviour give no solutions as well, following the tutorial and watching videos will not help as well.
Once generating the token I will get the following error:

Now you can tell everybody that Page Builder is working correctly but the issue is not solved...
Could it be possible that the professional account needs also to be a verified account on Facebook in order to get this service running on Facebook side?
