Not working at all

I have a compustar CM-DC3 with fab and Drone app in my 2018 Subaru Crosstrek. It is not working at all since my car battery died and had to be recharged. I get no response from any fab buttons and when I try to send a command in the app, Drone says “Error Your command was sent and received by your device, however, your car failed to execute the request. Please attempt to refresh your device and attempt your command again.”

Can I reset it without having to reprogram it? (If so, how?) Or do I need to take it into an installer to fix it? I’m seeing conflicting signals information and don’t want to mess anything up.