Accessing admin page via http://[ip_address]/admin should load.
Actual Behaviour:
Getting Site cannot be reached error. I've tried in several browsers.
Debug Token:
s93z96k24v
It was all working perfectly for several months, then it stopped when I tried to add a new list. Ultimately I completely reconfigured it (without saving settings). Now, I can ssh into the orange pi, and pihole says everything is fine, but the admin page won't load. I currently have DHCP and DNS on the router, bypassing the pihole, so I don't know if it's actually blocking anything. I'm hesitant to configure anything else until I can get the admin page up.
Currently, I'm getting:
$ pihole status
[✓] DNS service is running
[✓] Pi-hole blocking is Enabled
$ pihole enable
[i] Blocking already enabled, nothing to do
$ curl -I http://localhost/admin/
curl: (7) Failed to connect to localhost port 80: Connection refused
service lighttpd status
● lighttpd.service - Lighttpd Daemon
Loaded: loaded (/lib/systemd/system/lighttpd.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sat 2019-05-18 12:26:05 UTC; 9h ago
Process: 4524 ExecStart=/usr/sbin/lighttpd -D -f /etc/lighttpd/lighttpd.conf (code=exited, status=255)
Process: 4513 ExecStartPre=/usr/sbin/lighttpd -tt -f /etc/lighttpd/lighttpd.conf (code=exited, status=0/SUCCESS)
Main PID: 4524 (code=exited, status=255)
May 18 12:26:05 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
May 18 12:26:05 orangepizero systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.
May 18 12:26:05 orangepizero systemd[1]: Stopped Lighttpd Daemon.
May 18 12:26:05 orangepizero systemd[1]: lighttpd.service: Start request repeated too quickly.
May 18 12:26:05 orangepizero systemd[1]: Failed to start Lighttpd Daemon.
May 18 12:26:05 orangepizero systemd[1]: lighttpd.service: Unit entered failed state.
May 18 12:26:05 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
journalctl -u lighttpd
-- Logs begin at Sat 2019-05-18 14:39:41 UTC, end at Sun 2019-05-19 20:36:57 UTC. --
May 19 20:36:53 orangepizero systemd[1]: Starting Lighttpd Daemon...
May 19 20:36:53 orangepizero systemd[1]: Started Lighttpd Daemon.
May 19 20:36:53 orangepizero lighttpd[23774]: 2019-05-19 20:36:53: (log.c.171) opening errorlog '/var/log/lighttpd/error
May 19 20:36:53 orangepizero systemd[1]: lighttpd.service: Main process exited, code=exited, status=255/n/a
May 19 20:36:53 orangepizero systemd[1]: lighttpd.service: Unit entered failed state.
May 19 20:36:53 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
May 19 20:36:54 orangepizero systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.
May 19 20:36:54 orangepizero systemd[1]: Stopped Lighttpd Daemon.
May 19 20:36:54 orangepizero systemd[1]: Starting Lighttpd Daemon...
May 19 20:36:54 orangepizero systemd[1]: Started Lighttpd Daemon.
May 19 20:36:54 orangepizero lighttpd[23797]: 2019-05-19 20:36:54: (log.c.171) opening errorlog '/var/log/lighttpd/error
May 19 20:36:54 orangepizero systemd[1]: lighttpd.service: Main process exited, code=exited, status=255/n/a
May 19 20:36:54 orangepizero systemd[1]: lighttpd.service: Unit entered failed state.
May 19 20:36:54 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
May 19 20:36:54 orangepizero systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.
May 19 20:36:54 orangepizero systemd[1]: Stopped Lighttpd Daemon.
May 19 20:36:54 orangepizero systemd[1]: Starting Lighttpd Daemon...
May 19 20:36:55 orangepizero systemd[1]: Started Lighttpd Daemon.
May 19 20:36:55 orangepizero lighttpd[23818]: 2019-05-19 20:36:55: (log.c.171) opening errorlog '/var/log/lighttpd/error
May 19 20:36:55 orangepizero systemd[1]: lighttpd.service: Main process exited, code=exited, status=255/n/a
May 19 20:36:55 orangepizero systemd[1]: lighttpd.service: Unit entered failed state.
May 19 20:36:55 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
May 19 20:36:55 orangepizero systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.
May 19 20:36:55 orangepizero systemd[1]: Stopped Lighttpd Daemon.
May 19 20:36:55 orangepizero systemd[1]: Starting Lighttpd Daemon...
May 19 20:36:55 orangepizero systemd[1]: Started Lighttpd Daemon.
May 19 20:36:56 orangepizero lighttpd[23838]: 2019-05-19 20:36:55: (log.c.171) opening errorlog '/var/log/lighttpd/error
May 19 20:36:56 orangepizero systemd[1]: lighttpd.service: Main process exited, code=exited, status=255/n/a
May 19 20:36:56 orangepizero systemd[1]: lighttpd.service: Unit entered failed state.
May 19 20:36:56 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
May 19 20:36:56 orangepizero systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.
May 19 20:36:56 orangepizero systemd[1]: Stopped Lighttpd Daemon.
May 19 20:36:56 orangepizero systemd[1]: Starting Lighttpd Daemon...
May 19 20:36:56 orangepizero systemd[1]: Started Lighttpd Daemon.
May 19 20:36:56 orangepizero lighttpd[23860]: 2019-05-19 20:36:56: (log.c.171) opening errorlog '/var/log/lighttpd/error
May 19 20:36:56 orangepizero systemd[1]: lighttpd.service: Main process exited, code=exited, status=255/n/a
May 19 20:36:56 orangepizero systemd[1]: lighttpd.service: Unit entered failed state.
May 19 20:36:56 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
May 19 20:36:57 orangepizero systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.
May 19 20:36:57 orangepizero systemd[1]: Stopped Lighttpd Daemon.
May 19 20:36:57 orangepizero systemd[1]: lighttpd.service: Start request repeated too quickly.
May 19 20:36:57 orangepizero systemd[1]: Failed to start Lighttpd Daemon.
May 19 20:36:57 orangepizero systemd[1]: lighttpd.service: Unit entered failed state.
May 19 20:36:57 orangepizero systemd[1]: lighttpd.service: Failed with result 'exit-code'.
Your output is cut off, but from what I see it looks like you don't have correct permissions on /var/log/lighttpd. Make sure that folder and anything in it is able to be read and written to by the www-data user.