Shoutbox

I have locked my messenger for the first time and when i did it the messenger signed me out and now i can't sign in again

ps: when i try to sign in it gives me the message in attachment

If you restart the computer does the problem go away?

yes

What may have happened is that it didn't actually sign you out, and you then opened a second instance of Messenger and tried to sign into it with the same account (which isn't allowed on the same computer)

If you do lock Messenger, double clicking on the new icon should unlock it for you and bring it back just as it was before