(solved) vray crashing blender

I’m having many crashes with Blender and vray. sometimes Blender stops working sometimes its Vray . Vray wont render sometimes I press export mesh again and it fix’s the problem sometimes when I export again to fix it says traceback( most resent call list) file… I was going to download 32 bit versions of each but thought I should ask advice first. I have windows 7 64 bit.
Thank you
blender console says it is doing a prepass after i press export to fix but after it is still not working
Edit: I was going to fast for Vray . I wait now for the console to stop working then render.