My Docker Pihole had been running for months perfectly fine and then suddenly died yesterday and I can no longer access the admin page, after deploying a new image.

Title sums it up. I did a full reboot of my server yesterday for no reason other than….I hadn't done it in a while and when I pulled it back up suddenly all my connections were dead. I go to the admin page at port 8082 and it returns nothing. The container is running but it's not doing anything. I got frustrated so I just decided to redeploy from scratch. I went to the official page and got the Docker Compose, changed my volume location, password, and timezone, and called it a day.

But first it said I got a Docker error saying "Project launch failed: 'pihole.'" I manually started it again and it loaded, but the internal log now says DNS Resolution is currently unavailable.

2026-09-03T15:25:23.876466586Z [i] Setting up user & group for the pihole user 2026-09-03T15:25:23.879206992Z [i] PIHOLE_UID not set in environment, using default (1000) 2026-09-03T15:25:23.880978341Z [i] PIHOLE_GID not set in environment, using default (1000) 2026-09-03T15:25:23.881349585Z 2026-09-03T15:25:23.881364914Z [i] Starting FTL configuration 2026-09-03T15:25:24.005911845Z [i] No DNS upstream set in environment or config file, defaulting to Google DNS 2026-09-03T15:25:24.095688754Z [i] Assigning password defined by Environment Variable 2026-09-03T15:25:24.095793794Z [i] Starting crond for scheduled scripts. Randomizing times for gravity and update checker 2026-09-03T15:25:24.098535745Z 2026-09-03T15:25:24.098661617Z [i] Gravity migration checks 2026-09-03T15:25:24.101208157Z 2026-09-03 11:25:24.100 EDT crond: crond (busybox 1.37.0) started, log level 6 2026-09-03T15:25:24.145442038Z [i] No adlist file found, creating one with a default blocklist 2026-09-03T15:25:24.145535571Z [i] /etc/pihole/gravity.db does not exist (Likely due to a fresh volume). This is a required file for Pi-hole to operate. 2026-09-03T15:25:24.145545060Z [i] Gravity will now be run to create the database 2026-09-03T15:25:28.260022764Z [✗] DNS resolution is currently unavailable 

The last line looks most concerning, meaning it can't reach out anymore, and I still can't access the web interface page. How do I restore my DNS back to "default" and just restore the whole thing back to factory settings?

My issue looks to be like this post but I can't do the recommended troubleshooting step of creating the log as he suggested.