I cant reinstall Story board pro on my new computer. Even after I uninstalled from old one. How do I activate?

I cant reinstall Story board pro on my new computer. Even after I uninstalled from old one. How do I activate?
Thanks for any answers I can get

You need to deactivate the installed version from the old computer to be able to activate in on the new. Using the activation manager ( I think its called )

/ Mattias