You could try going here https://pgportal.smithmicro.com/product-licenses and seeing if you can deactivate your license. I have done it in the past. The only issue is there is a time limit on how often you can do this. If you used up all your licenses then take the drastic measure and deactivate all and next time you open Poser it will ask to reactivate. Just can't do it on a second machine for a while.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13