I installed CWP on Amazon EC2, after install, I do some configurations:
Change hostname to:
cardapp.online

I create two accounts:

Add my own nameservers on Amazon and o CWP:


All services aparentlly are ok:

But when I try to change DNS of ornatrix.com.br to ns1.cardapp.online and ns2.cardapp.online on domain that I already have created on CWP, I receive timeout message:

I have tested here and all are ok (less MX, but I dont need of MX at the moment...):
https://intodns.com/cardapp.onlineWhats wrong? I need to do some more configuration?