I install CentOsEb panel in hostname panel.mydomain.com how to use mydomain.com?

Hellow! In google cloud I install Centos Web panel, all is ok (Ssl not) but I have a question, if the host name is panel.mydomain.com how to use mydomain.com? I creat account in admin, but when I try to install wordpress site  in the user account give me this error: ERR_SSL_PROTOCOL_ERROR

I check https://www.sslshopper.com/ssl-checker.html#hostname=https://ayudamiwp.com/

"No SSL certificates were found on ayudamiwp.com. Make sure that the name resolves to the correct server and that the SSL port (default is 443) is open on your server's firewall" what tha mean? the domain is in godaddy is point to google cloud plataform and I use panel.ayudamiwp.com to install Centos web panel, its not possible use ayudawp.com? or what I do wrong?

domain needs to added to added by going to CWP.Admin -> user accounts -> Add new account

If you are seeing ERR_SSL_PROTOCOL_ERROR, then check for .htaccess file in docroot, a redirect to https might be causing the issue.

you can also install SSL by using the AutoSSL by going to CWP.Admin -> Webserver settings -> SSL certificates -> AutoSSL