Please follow the below template, it will help us to help you!
Expected Behaviour:
[network wide Blocking of ads, pi hole has been set up as DHCP server, the router dhcp server has been disabled}
Actual Behaviour:
[No blocking of ads on any device and DCHP server doesnt seem to work on my phone, works fine on the PC but get "Failed to obtain IP address" on my note 8]
Your debug log shows that DNS requests received by Pi-Hole are being properly filtered:
[2018-12-19 10:37:15.380] Imported 7150 queries from the long-term database
[2018-12-19 10:37:15.381] -> Total DNS queries: 7150
[2018-12-19 10:37:15.381] -> Cached DNS queries: 389
[2018-12-19 10:37:15.381] -> Forwarded DNS queries: 3876
[2018-12-19 10:37:15.382] -> Exactly blocked DNS queries: 2885
[2018-12-19 10:37:15.382] -> Unknown DNS queries: 0
[2018-12-19 10:37:15.382] -> Unique domains: 419
[2018-12-19 10:37:15.382] -> Unique clients: 4
[2018-12-19 10:37:15.383] -> Known forward destinations: 2
Your Pi-Hole lease duration is very long (1 year). If your router lease duration was equally long you will need to clear the DNS cache on each client and renew their lease.
It appears the client you are using to view those pages is not routing its DNS traffic through Pi-Hole. Check in the Pi-Hole query log for matching domain requests from that client.
The tools in the thread below may also be helpful: