May I ask to sign in again if facing a Facebook report a problem?
If multiple accounts logged into your portal and you signed out one of them, then it is obvious that you will get a Facebook report a problem. And. here, you were also asked to sign in again. Actually happened that, once you logged out of one account, then automatically all accounts will be logged out. So, you simply open its official site and enter your login credentials and then click on the Sign-in tab.