Problem after installing Facebook comments plugin

Hi,
First of all, thanks for a great plugin!

However, since installing a plugin for Facebook comments (https://www.ads-software.com/support/plugin/facebook-comments-plugin), new articles I post do not get the correct og-tags, and they can’t be shared properly (no title and description when shared). Also, this problem has happened to some of my older posts as well, although most of them are still fine.

When I run one of the posts that doesn’t share properly in the Open Graph Debugger I get the following errors:

Inferred Property The ‘og:url’ property should be explicitly provided, even if a value can be inferred from other tags.

When I click “Fetch new scrape information”, the article is being able to be shared properly again. However, Open Graph Debugger gives me the following error:

Object at URL ‘https://mydomain/post-name’ of type ‘website’ is invalid because a required property ‘og:title’ of type ‘string’ was not provided.

Anyone got a clue what could be wrong, and how to fix it? All help deeply appreciated!

https://www.ads-software.com/plugins/wonderm00ns-simple-facebook-open-graph-tags/

EDIT:
I should add, when i run a post that isn?t working in the Open Graph Debugger, a part from the error mentioned above all other data seems to check out. It has the correct title, image and description. But they still don’t show up when the post is shared.