Raspberry Pi with Pi Hole and Tailscale

I currently have a Raspberry Pi with Pi Hole setup and working. My router points to the Pi Hole IP and filters out ads etc. I’ve SSH into the Pi and installed Tailscale but it won’t allow me to spin it up. I get tailscale backend error 503. I assume that’s because it doesn’t have connection to the internet. What’s the proper way to get this setup?