Problem with delegate some domains to Plesk Server

I have a problem with delegating 3 domains to one of my servers.20 domains have been correctly delegated to this server, but 3 - I have not been able to handle the delegation for several weeks . The domain registrar indicates that everything is done correctly on their side.

I have a problem with domain endings,.hr,.dk,.fi
dig +short domain.hr
(empty response)

dig +short domain.hr @serverip
serverip

I don't understand what the problem is...

How to diagnose this?