mp3 encoder

Hi there!
I have a version os Cubase 6 that was doing fine on my computer until the last windows update. It is the one sold with de zoom h4 recorder. since this update de elicense for the mp3 plug-in broke, it can´t update or fix through the tools offered in the elicenser. Reinstalling was no good.

What can I do? Is the program so old I can´t expect to fix this bug? is there any way I can download and reinstall the mp3 enconder, specifically?

Thanks!