Facebook doesn't open

[ttarasu]

Hi all FM,
Am using iPhone 4s with iOS 9.3.5 software and my FB version 82.0.0.42.69(51077300)
For last 6-8 months FB doesn't open(10/100)
So was using paper mate and now friendly apps.
Can any help me to resolve the problem.
I have deleted and reinstalled so many times,rebooted iPhone it,but of no use.
The problem exists still.
Thanks in advance

 

[J. A.]

You've already done everything we'd suggest.

If possible, access Facebook via browser, and contact them. Tell them about your problem, maybe they can help.