Hello,
please, follow the instructions provided here:
The message means there is another Soft-eLicenser partially similar to yours, the licensing system does not allow that. The article is about a the missing Soft-eLicenser, but the solution is the same.
By running the software provided at that link, you’ll get a new Soft-eLicenser serial number and you will be able to authorise the software.
Kind regards,