The Praetorium Crashes

This is really pissing me off. I have crashed twice, then proceeded to get the Launcher System Error 2146697211, so I can't log back in, have to restart my damn game, and end up getting kicked out of the instance I have yet to complete, because I keep crashing in this damn instance. There is a cutscene before the second boss, right after the magitec part, that disconnects me. Then, IF IM LUCKY, I will get the launcher to load up right, get back in, kill the boss, THEN THE GAME CRASHES AGAIN. Seriously Im getting pissed off with this launcher error, and all these damn crashes im having to deal with. Fix your damn game, Square...

Anyone got any fixes for this shit? I can't even finish the last of my story quests, and the ability to unlock anything end game, until I finish this.