Hey! So I had the same issue, and I found a fix that worked for me. Go to your FB settings > Security and Login > Where You’re Logged In. Remove all active sessions and log back in.
Also, make sure “Stay logged in” is checked. Sometimes FB glitches and unchecks it automatically. Hope this helps!
Also, make sure “Stay logged in” is checked. Sometimes FB glitches and unchecks it automatically. Hope this helps!