Facebook login error “An unexpected error occured. Please try logging in again.”

So, recently, my country received a “fake” ban strike, and unfortunately, I also became a victim of this. Later, the bans were removed, but since then, I’m unable to log in to Facebook, Messenger, and Instagram on my phone, because I get an error message which I wrote in the title. I tried a bunch of things to solve the issue (resetting all settings, deleting cache, restarting the phone, etc.), but nothing helped.

P.S: Facebook, and Instagram is working perfectly on my computer.