Guild Wars 2

I have been having crashing problems ever since the start of the Lost Shores event.
I am unable to enter the Rata Sum map (my necromancer is stuck on the loading screen) and I also cannot access the Fractales of the Mist dungeon.

At first I assumed it was because of the huge amount of lag around that time, but even now, when it is a lot less crowded, I still crash every time. Thus I looked throughout my computer, deleted unnecessary programs and ran a defragmentation on my disks, with no results. So I was wondering if others are having this problem and if it can be fixed on my end.

Thanks in andvance.

i am also having the EXACT same problem, my necro entered rata sum and is now stuck loading and each time i try to enter it crashes