Whats outcome for below ones ?
hostnamectl
ip a; ip l; ip r
sudo brctl show
grep -v '#\|^$' /etc/network/interfaces
grep -v '#\|^$' /etc/dhcpcd.conf
sudo grep -v '#\|^$' /etc/wpa_supplicant/wpa_supplicant.conf | sed -e 's/^.*psk.*$/ **PSKPASS**/' | sed -e 's/^.*ssid.*$/ **SSID**/'
sudo netstat -nltup | grep 'Proto\|:53 \|:67 \|:80 \|:471'
sudo systemctl status pihole-FTL -l
sudo systemctl status dnsmasq -l
And try generate token and post it here or upload to pastbin for the developers to have a look: