Problems after power outage

After a power outage I had to do a reboot and the Unbrel screen says “rebooting” and has been for 30 minutes. What should I do now? The screen says " Please do not refresh this page or turn off your Umbrel while it is rebooting.

I have a UPS power supply coming but it isn’t here today. Thanks for the help

Likely the IP has changed. Plug a to monitor HDMI output and look the IP. Then type IP in browser to open Umbrel.