I have a weird issue that I can constantly replicate. If I'm on wifi (ANY wifi, not just my home network), I can get to my Sonarr just fine. But when I switch to mobile (4g) I get "Error: null" when trying to show the TV Shows.
I know my setup works outside of my network as I can open a browser from any desktop and get to it.
I am using SSL with a self signed cert and a DNS name instead of an IP. All of the other services (CouchPotato, Sabnzbd, Headphones) all work perfectly fine on mobile.