Hey guys,
While authenticating a new blogging application for one of our sites, I ran into the error you'll find in a screenshot in the attachments.
This error appears to be occurring due to changes implemented just yesterday, April 24th. They outline what these changes are in this dev blog post:
https://developers.facebook.com/blog/post/2018/04/24/new-facebook-platform-product-changes-policy-updates/
In particular it appears to be the publish_actions permission that has been deprecated and is no longer available.
Do you have or are you working on a fix for this particular issue?
Let me know any information that you have available, and if you need anything further from me.
Regards,
- Richard