So many forwarded queries with reply error?

Expected Behaviour:

Don’t know, maybe it’s normal?

Actual Behaviour:

My pihole.log is 99% this:
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1
Oct 6 21:32:50 dnsmasq[8955]: forwarded query to 8.8.4.4
Oct 6 21:32:50 dnsmasq[8955]: reply error is 1

I get that message pair up to 20 times per second.

I mean, it works fine, but I’m wondering what is being forwarded and failing here. Maybe it is related to the pihole running on a VPS and fail2ban having banned a lot of people probing/abusing my little dns hole?

Debug Token:

https://tricorder.pi-hole.net/swpxdxb0dn