Same error on all Debian installation: "127.0.0.1:53: read: connection refused"

[GreatBigWhiteWorld]

I have installed dnscrypt manually on several debian servers following the general linux installation steps:

Everything works fine till I try:

./dnscrypt-proxy -resolve google.com
Unable to resolve: [read udp 127.0.0.1:31272->127.0.0.1:53: read: connection refused]

This happens all the time in every Debian (12) servers I tried. But I resolved the issue for previous servers by adding an extra step:
editing /etc/network/interfaces to make sure 'dns-nameserver 127.0.0.1' is in place.

However, with the latest debian installation (12.2 codename bookworm) on a new VPS, I'm getting this same error that can't be solved by replicating my previous modification of the /etc/networking/interfaces file.