unable to verify account or password
OK,
so I've seen a lot of posts about this, but most of them seem to be dead ends becaue they are poorly written, or because they are about mail accounts.
I am unable to log into Facebook, Twitter, or Flikr in System Preferences > Internet accounts.
unable to verify account or password (username removed in pic - i'm pretty sure you know what I mean, but I'm not going to assume)
Passwords have been verified by logging in on Firefox. Two-factor authentication is off. I've tried logging in using another user account on the machine and am getting the same results.
Macbook Pro Early 2011,
Mac OS High Sierra 10.13.6
16GB ram.
Thanks in advance
MacBook Pro