Management interface bricked

Hi,

I was trying to move my MC15 license from my old PC to my laptop, but in the process something went wrong, so now I have the MC15 license in place for my PC, but the additional extensions are locked to something “null” I’m unable to move or recover the extensions, and thus the license file I can generate only includes the program. 

I get this error “CRITICAL: Product license is overallocated”

How do I reset the licenses totally and generate a new host that will include both MC15 and extensions?
 

Thanks!

\\\Jens