For my "job", I go LIVE on Facebook all the time. For some reason it fills up the memory storage over time, and I'll start getting issues, like freezing, or "memory full" error when I'm LIVE on my phone. This is a SURE-FAST way to fix the problem quickly!! It only logs you off Facebook and removes any permissions. It's easy to tap "yes" when those questions come back again.

How to fix phone memory full problem - android (Caused by Facebook LIVE)