Why won't my facebook app connect even though all my other apps connect fine?

[AC Question]

My FB app doesn't connect to the internet even though all others do.
I've tried
re-installing
updating
Older versions
Clearing the cache
Restarting
Force stopping

Still no show

 

[B. Diddy]

Welcome to Android Central! Which phone? Does this happen on both wi-fi and mobile data?