What's the output of these commands:
head /var/log/pihole.log
head /etc/pihole/gravity.list
lsof -i -P -n | awk -F' ' '/LISTEN/ {print $9, $1}' | sort -n | uniq | cut -d':' -f2
netstat -tulpn
Feel free to sent this info to tricorder as well. You can save the output of the commands to a file and then send it to tricorder: