MixVibes Cross iDJ3 1.3.3 license key is invalid.

I have a Numark iDJ3 mixer that the software it came with had Mixvibes Cross with it. I installed everything up until it asked for license key from the back of CD sleeve (That i have) and the code on back of sleeve says invalid key code. Try again/quit. I need the right license key to go any further. Please help me out. Thanks