Marked As Unsafe By Facebook After Buying WordPress Premium

Hi guys, just want to say first that I am very amazed and thankful for volunteers here who take time off to help others with their issues.

I have read so many posts but I still haven’t found a solution to my problem.

It might be because I am extremely non tech-savvy.

I only found out about a WordPress admin login a month after I started using WordPress. Till now, I still don’t understand the need to download WordPress and so far it’s fine.

My issue is that after I upgraded my plan to premium, Facebook started to mark my posts as unsafe.

I get this error when I use the Sharing Debugger:
The ‘fb:app_id’ property should be explicitly provided, Specify the app ID so that stories shared to Facebook will be properly attributed to the app. Alternatively, app_id can be set in url when open the share dialog.

It has never happened before. Everything worked so well. I have no extra plug-ins (another thing I do not fully understand so I don’t use), neither did I edit any coding, not that I know how.

Feeling really dejected now because it feels like I paid WordPress only to end up as a “spam” website by Facebook.

I really appreciate any rendered help, hopefully in very simple and layman terms.

Thank you so much.

Regards,
Esther