Disk usage chart is buggy

Dokploy shows disk usage at 19 GB but I did a Hetzner backup now and it shows 6 GB. I have been monitoring the space chart over the last 2 months and it's been creeping up. I have Supabase and Uptime Kuma installed, but they are empty and haven't been used. I am on v0.10.4 and have daily docker cleanup on.