Please make sure that you are signed into the Splice desktop client with an account that has a Zone plan active before you open up your DAW to load Zone. While you are on the Rent-to-Own plan, the client needs to verify the Zone plugin once every few days.
If your plan is active and Splice app is open, please try logging out of the Splice app and log back in. Relaunch your DAW and initiate a new instance of Zone.
If issues persist, please contact firstname.lastname@example.org.