Game stuck in Virus Chest

Starpoint Gemini Warlords was working fine but all of a sudden stopped. After a bit of faffing around I found it in my Virus Chest. It won’t let me restore it and it won’t let me delete it either. I uninstalled the game and deleted all the folders but it’s still in the chest even after rescanning my hard drive. I’ve tried making it an exception but that did nothing either. I’m at somethin of a loss. Should I reinstall Avast?

Using the Virus Chest: https://support.avast.com/article/21/