server pdns_server: error parsing 'server.somedomen.tld'

I get that error every 10-30 min everyday How can solve this problem? Apr 26 00:11:16 server pdns_server: error parsing 'server.someserver.tld' from file '/var/named/server.someserver.tld.db': Trying to insert non-zone data, name='XX.XX.XXX.XXX.in-addr.arpa', qtype=PTR, zone='server.someserver.tld' Apr 26 00:11:16 server pdns_server: error parsing 'server.someserver.tld' from file '/var/named/server.someserver.tld.db': Trying to insert non-zone data, name='XX.XX.XXX.XXX.in-addr.arpa', qtype=PTR, zone='server.someserver.tld'