Zone has no NS records, BIND does not load files

I recently bought a dedicated server from OVH and installed Centos 7 and Cpanel on it it seems there is problems with my BIND configuration because even BIND it self can not resolve its own IP address. and when i start bind,it starts but i saw these in log file: Erros in /var/log/named: 07-Jun-2020 16:10:43.903 general: error: zone server-123.xyz/IN/internal: has no NS records 07-Jun-2020 16:10:43.903 general: error: zone server-123.xyz/IN/internal: not loaded due to errors. 07-Jun-2020 16:10:43.908 general: error: zone server-123.xyz/IN/external: has no NS records 07-Jun-2020 16:10:43.908 general: error: zone server-123.xyz/IN/external: not loaded due to errors. my configurations is like below: host name: s1.server-123.xyz ns1: ns1.server-123.xyz ns2: ns2.server-123.xyz zonefile: ; cPanel first:88.0.6 (update_time):1591539730 Cpanel::ZoneFile::VERSION:1.3 hostname:s1.server-123.xyz latest:88.0.6 ; Zone file for server-123.xyz $TTL 14400 server-123.xyz. 86400 IN SOA ns1.server-123.xyz. root.s.server-123.xyz. ( 2020060720 ;Serial Number 3600 ;refresh 1800 ;retry 1209600 ;expire 86400 ) server-123.xyz. 14400 IN A [redacted] server-123.xyz. 14400 IN MX 0 server-123.xyz. mail 14400 IN CNAME server-123.xyz. www 14400 IN CNAME server-123.xyz. ftp 14400 IN A [redacted] server-123.xyz. 14400 IN TXT "v=spf1 +a +mx +ip4:[redacted] ~all" default._domainkey 14400 IN TXT "v=DKIM1; k=rsa;p=****; ns1 14400 IN A [redacted] ns2 14400 IN A [redacted] s1 14400 IN A [redacted] Would you please help me understand what is the problem? [Moderator note: removed IP addresses]