This message has been temporarily removed because the sender's account requires verification.
About the FB's
This message has been temporarily removed because the sender's account requires verification.
If you got this you should know that it sounds like the sender has been asked to verify their identify.
So you can just wait patiently (until they've completed the verification process). Once this has been done, you should be able to see your friend's account online again. (Because when you can't chat with a FB friend, you also can't see his/her account.)
This is all I learned and all I know currently.