Thanks for your reply. I've installed DNSCrypt v2 as DNS server and the DNS server at localhost#54321 are different ones
server_names = ['ahadns-doh-nl', 'ahadns-doh-nl-ipv6', 'freetsa.org-ipv6', 'doh-crypto-sx', 'doh-crypto-sx-ipv6', 'doh.appliedprivacy.net', 'doh.ffmuc.net', 'doh.ffmuc.net-v6', 'v.dnscrypt.uk-ipv4', 'v.dnscrypt.uk-ipv6', 'arapurayil-doh-in']
This is the output of what you asked me to check
nslookup open.spotify.com pi.hole
Server: pi.hole
Address: fd00::dca2:f8ee:a666:bdd8#53
Non-authoritative answer:
open.spotify.com hinfo = "This query has been locally blocked" "by dnscrypt-proxy"
open.spotify.com hinfo = "This query has been locally blocked" "by dnscrypt-proxy"
Debug token
https://tricorder.pi-hole.net/GtebLiur/
Thank you again