h3 and quic errors

NextDNS service is working great but I have some errors in my router logs from time to time... Can someone tell me what is the meaning of them (I use dnsproxy on OpenWRT snapshot router):

https://nextdns.io/diag/5f268210-2143-11f0-8f34-d309c5799d22

 Apr 23 16:31:36 AX3000T dnsproxy 2025/04/23 14:31:35.990502 ERROR exchange failed prefix=dnsproxy upstream=https://doh3.dns.nextdns.io:443/3518e7/AX3000T question=";lichess.org.\tIN\t HTTPS" duration=47.185208ms err="requesting https://doh3.dns.nextdns.io:443/3518e7/AX3000T: Get_0rtt \"https://doh3.dns.nextdns.io:443/3518e7/AX3000T?dns=AAABAAABAAAAAAABB2xpY2hlc3MDb3JnAABBAAEAACkE0AAAgAAAFv3pAAasUN7tt-8ACAAIAAEgAMCoAuE\": use of closed network connection"
 Apr 23 16:31:36 AX3000T dnsproxy 2025/04/23 14:31:35.991119 ERROR exchange failed prefix=dnsproxy upstream=https://doh3.dns.nextdns.io:443/3518e7/AX3000T question=";lichess.org.\tIN\t A" duration=48.011302ms err="requesting https://doh3.dns.nextdns.io:443/3518e7/AX3000T: Get_0rtt \"https://doh3.dns.nextdns.io:443/3518e7/AX3000T?dns=AAABAAABAAAAAAABB2xpY2hlc3MDb3JnAAABAAEAACkE0AAAgAAAFv3pAAasUN7tt-8ACAAIAAEgAMCoAuE\": use of closed network connection"

 Apr 23 23:18:24 AX3000T dnsproxy 2025/04/23 21:18:24.327223 ERROR exchange failed prefix=dnsproxy upstream=https://doh3.dns.nextdns.io:443/3518e7/AX3000T question=";digitalassetlinks.googleapis.com.\tIN\t A" duration=87.167988ms err="requesting https://doh3.dns.nextdns.io:443/3518e7/AX3000T: Get_0rtt \"https://doh3.dns.nextdns.io:443/3518e7/AX3000T?dns=AAABAAABAAAAAAABEWRpZ2l0YWxhc3NldGxpbmtzCmdvb2dsZWFwaXMDY29tAAABAAEAACkE0AAAgAAAFv3pAAZEVcTrFHwACAAIAAEgAMCoAtQ\": use of closed network connection"

 Apr 23 23:57:51 AX3000T dnsproxy 2025/04/23 21:57:51.682020 ERROR exchange failed prefix=dnsproxy upstream=https://doh3.dns.nextdns.io:443/3518e7/AX3000T question=";geomobileservices-pa.googleapis.com.\tIN\t A" duration=94.352593ms err="requesting https://doh3.dns.nextdns.io:443/3518e7/AX3000T: Get_0rtt \"https://doh3.dns.nextdns.io:443/3518e7/AX3000T?dns=AAABAAABAAAAAAABFGdlb21vYmlsZXNlcnZpY2VzLXBhCmdvb2dsZWFwaXMDY29tAAABAAEAACkE0AAAgAAAFv3pAAZEHH_GV5wACAAIAAEgAMCoAn4\": use of closed network connection"


 Apr 24 04:18:00 AX3000T dnsproxy 2025/04/24 02:18:00.792312 ERROR exchange failed prefix=dnsproxy upstream=quic://AX3000T-3518e7.dns.nextdns.io:853 question=";static.whatsapp.net.\tIN\t A" duration=15.569509ms err="reading response from quic://AX3000T-3518e7.dns.nextdns.io:853: EOF"