Pages turn white/blank when attempting to read PMs, or Delete Posts

[Snuddo]

So I have this issue that has been pissing me off, because I cant find a solution to it. I have done most of the things I could understand from reading this: http://www.vbulletin.com/docs/html/main/blank_pages

But it didnt fix it, so im going to give anyone who can help me with this issue a $100 reward.

The Problem: When trying to (open/read) PMs the page turns white/blank, same thing goes for when I try to delete a post. Ive never had this problem before, it seems like it came when I added some modules, but when I turn off the modules the problem is still there.

So im assuming it isnt the modules fault. So if anyone can help me, preferably by teamviewer or something it might be faster.