why my nodejs app server on 9090 port with ZeroSSL but this site can't be reached ??

i made my app server apache2 + nodejs with ZeroSSL so

<VirtualHost *:80>
    ServerName domain
    ServerAlias www.domain
    DocumentRoot /home/sammy/www/site-domain
    Redirect permanent / https://domain/
</VirtualHost>
<VirtualHost *:443>
    ServerAdmin noreply@domain
    ServerName domain
    ServerAlias www.domain
    DocumentRoot /home/sammy/www/site-domain
    <Directory /home/sammy/www/site-domain>
        Options Indexes FollowSymLinks Includes ExecCGI
        #Options +FollowSymLinks
        AllowOverride All
        Order allow,deny
        allow from all
        Require all granted
    </Directory>
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
    SSLEngine on
    SSLCertificateFile /home/sammy/ssls/domain/certificate.crt
    SSLCertificateKeyFile /home/sammy/ssls/domain/private.key
    SSLCertificateChainFile /home/sammy/ssls/domain/ca_bundle.crt
</VirtualHost>
https://domain/ is working fine (on apache2 with ZeroSSL)
but 
var options = {
    // pauseOnConnect: true,
    cert: fs.readFileSync(cert_path_crt, 'utf8'),
    ca: fs.readFileSync(ca_path_crt, 'utf8'),
    key: fs.readFileSync(cert_path_key, 'utf8'),
    // requestCert: true,
    // rejectUnauthorized: false
}

https://domain:9090/ is not working problem (on nodejs with ZeroSSL) error appeared “this site can’t be reached”

(https://domain:9090/ working fine on me but cannot reached from outsite) how to fix it ?? help me, do you have any ideas to advise me !?