Error in NTP client: Cannot resolve NTP server address: Try again

I'm running Pi-hole on a Raspberry Pi 1B with Raspberry Pi OS (Debian GNU/Linux Bullseye). I have just set up my Pi-hole for the first time, but I'm not seeing advertisements blocked. Although I'm able to access the admin portal, only a small number of queries appear to have been blocked so far.

I'm encountering the error: 'Cannot resolve NTP server address: Try again,' and I'm unsure how to fix it.

Debug log contents removed by moderator

Don't publicly post your debug log contents.

Do this to temporarily reset the nameserver on the Pi to bypass Pi-Hole DNS.

sudo nano /etc/resolv.conf

Edit the nameserver line to nameserver 9.9.9.9 or your preferred third party DNS service, save and exit

Run

sudo pihole -d

and upload the debug log.

https://tricorder.pi-hole.net/Brtb9WuM/