Having issues getting Pihole to start

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Expected Behaviour:

-operating system: Raspbian Release 10
-hardware: Raspberry Pi Zero W

Actual Behaviour:

Fresh install of Pihole on Pi Zero W but after the setup and first reboot, Pihole doesn't work. Admin shows Lost connection to API. Status is DNS service not running and FTL offline.

In the router, I changed DNS to Pihole's, restarted router, logged in to Pihole but same problem. Once I enable Pihole from he Admin panel, a page refresh disables it again.

On running Pihole restartdns, I get "Job for pihole-FTL.service failed because the control process exited with error code.
See "system to status pihole-FTL.service" and "journalctl -xe" for details

I'm fairly new to Pihole and Pi in general with basic Linux knowledge. Any help would be fine

Debug Token:


What is the output of

Here's the output

systemctl status pihole-FTL.service
‚óŹ pihole-FTL.service - LSB: pihole-FTL daemon
Loaded: loaded (/etc/init.d/pihole-FTL; generated)
Active: failed (Result: exit-code) since Thu 2020-11-19 23:36:28 IST; 9h ago
Docs: man:systemd-sysv-generator(8)
Process: 4986 ExecStart=/etc/init.d/pihole-FTL start (code=exited, status=2)

Nov 19 23:36:28 raspberrypi systemd[1]: Starting LSB: pihole-FTL daemon...
Nov 19 23:36:28 raspberrypi pihole-FTL[4986]: /etc/init.d/pihole-FTL: line 46:
Nov 19 23:36:28 raspberrypi systemd[1]: pihole-FTL.service: Control process exi
Nov 19 23:36:28 raspberrypi systemd[1]: pihole-FTL.service: Failed with result
Nov 19 23:36:28 raspberrypi systemd[1]: Failed to start LSB: pihole-FTL daemon.
lines 1-11/11 (END)

I did a clean install on another sd card and Pi hole is now working fine. I updated my Pi Zero first and then installed Pi Hole. I'll monitor this for a few days to see if things are working properly. Seems like my Pi Zero didn't like my previous card.