Developer Policy 1.2 - App is not loading or has broken functionality

Hello All,
We have a repeating issue with regular app review:
Platform Term 1.2 Developer Policy 1.2 - App is not loading or has broken functionality Platform affected: Website We found that the app did not load properly or had issues that prevented us from completing our review. Common examples of this include broken integrations and interface failures (such as broken buttons or links). This violates Developer Policy 1.2.
The situations appears from the moment when we developed our new webiste and we got rid of facebook login and share feature. Previusly under our domain there was a PWA app with facebook login, and now is a simple landing page. We rae only using FB login in our mobile apps now.
We have a third time now that Meta is switching off our API and i belive that we should change sth in our app configuration . Could you please help ?