Adobe Illustrator suddenly closes by itself

Hi,
My adobe illustrator was working fine a couple of days ago, but now I get an error when I open illustrator.

The application Illustrator has unexpectedly quit.
The system and other applications have not been affected. A report has been created that you can send to Adobe to help identify the problem.
I tried to use the shift+ctrl+option+apple when double clicking to open. It didn’t help at all. I research a bit on the net and I saw that it might have to do with caches. I tried to follow the instructions given, but iam not exactly sure how to fix it. I still get the same results. Can someone give me a step by step guide to fixing this.
Thanks
