[Error occured at line 1547]

I used this plugin dozens of times in the past but now I get this error:

Some or all access permissions are missing. Please click the button Grant access rights! and authorize the plugin to post to your Facebook profile or page.
[Error occured at line 1547]

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

Any tips?

https://www.ads-software.com/extend/plugins/facebook-page-publish/