Zombie installer won't close

I'm currently running Bitdefender antivirus for mac v8.2.1.15 on Catalina 10.15.5.

I have an installer v1.3.0 (1.3.0.277) That won't close. Whenever I quit, force quit, or restart my machine it resumes and does nothing except display an empty download window. How can I get rid of this?


Thanks for any help!