Guild Wars 2

I had just finished doing the new dungeon, and exited into the Diessa Plateau, and about 30-69 sec later, (after using the waypoint by the entrance to the black citadel in the Plateau), my game crashed and asked me to run a file check. I have tried to log in on that character, and another one also in Diessa Plateau, but the game crashes and asks me to run the file check again. Ive tried logging on to both characters multiple times and run the file check each time, and it is still happening. I was wondering if anyone else is having this problem, or knows a solution.

If anyone is missing the waypoint hes talking about (i think) it is the one in the southwest corner of the map, south of the Guardpoint Decimus Waypoint, past a bunch of ghosts. It does not show up on the map, and is by a guild challenge.