I’m having the same issue. I assume something has changed with Facebook’s API, but I would love to know how to fix, or if a fix is planned for this issue.
Here’s a test post I submitted: https://www.facebook.com/1838359766176072/posts/1912821578729890
From this website: https://kitchensandhome.com/
Everything worked perfectly until the last day or 2.
Error Log:
[2018-04-12 00:52:25] [User ID:3] – [Test] [Facebook – Facebook #0] – OK – TEST Message Posted | Post Link 0
[2018-04-12 00:43:50] [User ID:3] – [Test] [Facebook – Facebook #0] – OK – TEST Message Posted | Post Link 0