Well, I was hosting a dedicated server, And i left the game too Shut the server down, and i put on some add-ons and disabled addons and i started it back up and i couldn't join!!
And the problem was: Invalid packet (1).
I shut it down again and ALL the add-ons were enabled.
I tried too disable the add-ons again, but same thing, All add-ons were enabled.
Please help!