At first, I was using cloudflare, but I figured it was causing issues so I moved to ClouDNS. I'll look into the port to see if it's open, but like I said before this is a fresh install of both Cloudron and adguard. It used to work right out of the box. I've done several reinstalls of both Cloudron and adguard to make sure it wasn't just me
Edit: So apparently IONOS has its own firewall policy separate from the vps itself. I had to login to the dashboard and update the firewall to allow 853. It now works. Thank you for your patience. Never had a vps provider like this before. ðŸ«