Pi-hole Admin interface not accessible

Thanks for the swift response.
I'm trying to run the Pi Zero on a docker from my Synology NAS. From the log is seem to be working, but the web portal is not active. Anyone knows?

log:

In the image, it is possible to see that the IP of the pihole is 192.168.1.2 and the web IP is 32781

Accessing the URL http://192.168.1.2:32781 - doesn't show anything. Any advice?

Are you running Pi-hole on the Synology or on a Raspberry Pi Zero?

I'm running the pihole right now on a Synology NAS. The snapshot above is the details of the pihole container after i started it.