Error occured at line 454

I am having the exact same problem! I had it all setup, it was working great, and a little while ago the plugin stopped working and reported the same error.

“Facebook returned an unexpected error: An unknown error occurred
Try to resolve this issue, update the plugin or inform the author about the problem.
[Error occured at line 454]

Your page or profile’s access permissions could not be verified.”

I would love to get this working again. Any suggestions?

Fixed it!

I got mine to work by disabling offline_access permissions in the facebook app settings.

1. Login to https://developers.facebook.com/
2. Select Apps
3. Click on the App you created
4. Under “Settings” select “Edit Settings”
5. On the left-hand side under “Settings” select “Advanced”
6. Under “Migrations” click that “Remove offline_access permission:” is DISABLED
7. Scroll to the bottom and “Save Changes”

Now when you visit the plugin settings in the WP back-end you should be able to “Grant Access Rights”. If not, you may need to uninstall and reinstall the plugin.

Hope this helps!

I’m having the same problem.

Tryied what Carloyn said, but there’s no “Remove offline_access permission” on “Migrations”. Disabled all on Migrations. The problem remains…