Couldn't add Device

I can’t add my iMac to Prey; I get message “We couldn’t complete the setup because the device didn’t connect to Prey, don’t worry, it will do so automatically when it reaches Prey’s servers.” but it never does add it. I have iPhone and iPad on it OK, just not the iMac

Same problem here, after i updated to Lame 64 bit only Catalina OS!
I posted my problem a while ago and nobody reply to it…
Here is the FIX: