license on the USB is corrupted

Hi, I would have a little problem with Cubase Essential 4.
I replaced the hard drive in my Mac Pro I installed Mavericks and now after installing Cubase Essential 4 I can not reactivate the license.
I downloaded the latest version of USB - eLicenser, but my license on the USB is corrupted and asks me a permit to repair.
How do I fix it?

Thanks and sorry for my english