Error 404 when starting Docker container

Sonarr version (exact version): Unknown for I am unable to start Docker container
Mono version (if Sonarr is not running on Windows):
OS: Docker running on Ubuntu
Debug logs:
Description of issue:

I am running Sonarr, Radarr and NZBGet all inside of Docker (Portainer) along with my VPN connection. I was attempting to get Qbittorrent setup as well but something went haywire with the setup so I deleted the container. Once I deleted the container for some odd reason I was no longer able to get any of my other containers, which have been running without issues for a couple of years now, to start with the exception of my VPN container. When I try to start any of the containers in Portainer I get Code 404 message being displayed.

Here are the logs from Portainer: [Info] ImportListSyncService: No list items to process [Error] CommandExecutor -