Co-op game was cancelled.

[Babanne92]

Hi everyone! I'm a BF3 player and i play properly Team DM. As i wanted to play Co-op game(public matchmake choosen), the game begins as always with synchronisation an logging in. After about 3 min. wait, the game closes itself and says on battlelog Co-op Game Was Cancelled. Is there a solution for that bug or error? I've already finished first 3 co op missions.