License manager doesn't work

I just deactivated my licenses on my laptop in order to use them on a bigger machine temporarily, but I can’t activate them on my new machine. The license manager doesn’t detect any licenses which is an obvious and major bug, and activating them isn’t working either; it complains that my licenses are for the wrong host, even though I installed the OFX versions and I’m trying to activate the OFX versions.

BTW I just uninstalled Sapphire OFX and the app manager thinks that it’s still installed…