waves 9 crash C5 32bit , but not C7 64 bit

Hey everyone
I never had this problem before on any computer, but I just got a new computer to my studio
I installed both C5 32 bit and C7 64 bit

Everything worked fine for a while, but then WAVES 9 stopped working on C5 saying “A serious problem has occurred…”
Still works fine on C7 though

Any ideas why it started happening?

Wow great support Steinberg!

The distributor in my country doesn’t want to help me because I bough through Ebay, and here apparently no one cares…