Matches aren't saving through a reboot.

I've installed Audiobookshelf in a Proxmox LXC container with the help from Helper-Scripts. I can match books and they stay matched until I restart the container and then they revert back to what they were before the match. I'm not really sure where to begin troubleshooting this issue, so any help is appreciated and I'll be happy to provide any additional information needed for troubleshooting.

Thanks!