Hi, I want to add a sub domain that I purchased. www.mydomain.fr
But still have an error from my registrar when I change DNS Servers by ns1.zxq.net and ns2.zxq.net
Thank you

make sure you first add it to your hosting account and once added go to Add Custom Domain, click on the Sub-Domain radio button and in the input box put your sub domain like test and select your domain from the drop menu and click apply custom domain and you will be set