@binhex Just wanted to first say thanks for your work and your support.
I too was having issues since last night (my system auto-updated my containers for the month). It looks like qtbitorrent was updated to 4.6, which im guessing needs whitelisted on one of the trackers I use. I downgraded to last version, and all is well. @Axelfony have you tried downgrading by chance?
I used: binhex/arch-qbittorrentvpn:4.5.5-1-04
and it's working again.
(found on https://github.com/binhex/arch-qbittorrentvpn/releases)