[SOLVED] What the .... !!!!

I have v6.0, working for almost a year, today, I decided to do the usual update, then BAM !!! got this message:

Version not permitted for this server.
Contact NetMake (www.scriptcase.net)

Can’t run any of the applications anymore !!! Can someone tell me what’s going on ?

Best

oops, I just saw the other post, regenerating the S/N twice solved the problem.