They're not going to export data from old (betnomi.bet) to new (betnomi.com), therefore we need to create a new account to their new platform if we wish to continue playing on their site.
It is not a question to create a new account that is easy.
This is for users who have accounts on Betnomi.bet and still have funds there. The owner mentioned about the account retrieving process from the betnomi.net to the new domain name.
I think if you don't want to create a new account, you can choose the account retrieving process but the new domain is just in beta version.