DNS delegation issue for aligol.dpdns.org

[hosseinaligol]

Hello DigitalPlat Support,

I configured my domain aligol.dpdns.org to use the Cloudflare nameservers:

• samara.ns.cloudflare.com
• anirban.ns.cloudflare.com

The Cloudflare zone has remained Pending for more than 24 hours.

I checked the authoritative DigitalPlat nameservers directly:

• ns2.digitalplat.org → correctly returns both Cloudflare nameservers.
• ns3.digitalplat.org → correctly returns both Cloudflare nameservers.
• ns4.digitalplat.org → correctly returns both Cloudflare nameservers.
• ns1.digitalplat.org → returns SERVFAIL for aligol.dpdns.org.

Public resolvers (1.1.1.1 and 8.8.8.8) also return SERVFAIL for the domain.

I also checked DNSSEC, and there are no DS records for the domain.

Could you please check the DNS delegation/zone configuration for aligol.dpdns.org, particularly why ns1.digitalplat.org returns SERVFAIL?

Thank you.