License site says "The lines you submitted are already recorded in our systems."

[Dr. Stefan Richter]

We do have a academic license for flap and grid from molecular discovery.

For one computer we have already activated the license for grid and later now we want to activate the version for flap. However, the license page:

https://www.moldiscovery.com/license/

gives the error: "The lines you submitted are already recorded in our systems.".

How can i resolve this?