The glue provided by the root servers does not match glue that provided by your authoritative DNS servers.
(dns.home.pl. 86400 IN A 46.242.149.11) present at Parent, missing at (46.242.149.21, 46.242.149.10)
(dns.home.pl. 86400 IN A 46.242.149.10) present at Parent, missing at (46.242.149.21, 46.242.149.10)
(dns2.home.pl. 86400 IN A 46.242.149.20) present at Parent, missing at (46.242.149.21, 46.242.149.10)
(dns2.home.pl. 86400 IN A 46.242.149.21) present at Parent, missing at (46.242.149.21, 46.242.149.10)