You are using apache instead of the officially supported lighthttpd as webserver
[80] is in use by apache2 (https://docs.pi-hole.net/main/prerequisites/#ports)
[80] is in use by apache2 (https://docs.pi-hole.net/main/prerequisites/#ports)
Pihole itself seems to work properly
[2020-11-26 18:18:37.196 6361M] -> Total DNS queries: 24408
[2020-11-26 18:18:37.196 6361M] -> Cached DNS queries: 2158
[2020-11-26 18:18:37.196 6361M] -> Forwarded DNS queries: 16924
[2020-11-26 18:18:37.196 6361M] -> Blocked DNS queries: 5326
[2020-11-26 18:18:37.196 6361M] -> Unknown DNS queries: 0
[2020-11-26 18:18:37.196 6361M] -> Unique domains: 2063
[2020-11-26 18:18:37.196 6361M] -> Unique clients: 12
[2020-11-26 18:18:37.196 6361M] -> Known forward destinations: 1
I am running Lighttpd on port 8065, I see the problem now earlier I was able to see pihole showing graphs even on port 80 of apache now it only shows graphs on port 8065 of lighttpd. well what changed that after updating php to 7.4 that pihole cannot display graphs while web ui running in port 80