They took away domains and hacked engines. What to do?

Question

Domain name market

Hello everyone!

My websites Postun.com and Pr-Company.org were hacked yesterday afternoon. All sites belong to me.

Later I saw that the hosting of the domains changed and thus it became clear that it was not just a matter of hacking DLE 9.5 and Wordpress.

I logged into my Naunet account and what did I see there? There is not a single domain registered by me!

I immediately wrote to Naunet, until I received an answer ...

I don’t understand what happened at all. How did it happen that there was not a single domain in the Naunet admin panel. How the attackers took over the database is also not clear ...

I ask for the help of knowledgeable people. How to return everything?

PS If he sells websites, then don't be fooled!