Facebook on tiktok

I got this off my privacy settings on tiktok. What does it mean?

I got this off my privacy settings on tiktok. What does it mean?
It appears they have become part of the app. Make sure you block them. There are tutorials on TikTok.

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i can only favorite posts
Hi I recently made a tiktok account to post pharmacy content for people studying pharmacy. the idea was to post study and revision tiktoks. I posted my first video yesterday, and in the video i explicitly used the phrase 'exam info you need to know' and then talked about some medication. next day my account has been perma b@nned and the appeal was unsuccessful. anyone know why?