Custom integration hacs causing problems with PiHole?

I’m getting a warning in HA about a possible problem with a zigpy application and wonder if it could be the cause of a bunch of rate limit warnings in my Pihole installation. The Pihole warnings point to the HA IP address. How would I run this HA warning down to see if it’s the issue?
I had a movement sensor installed and thought it might be the problem so I removed it but it made no difference. Maybe it isn’t even a Zigbee issue?
Many thanks for any pointers.