Full license Adobe 'expired'..

I have a legal adobe CS6 Design and Web Premium license. But all of a sudden a screen popped up everytime I used an adobe programme (photoshop, reader). And now it says my trail version is expired and that I have to buy a licence if I want to continue using it. But I already have a licence!

It won't axcept my original number that came with the software and I cant use any of my programs anymore!