Port 443 goes active, https causes error

[rsthomas]

After adding Let's Encrypt to my Sentora control panel domain I am not able to access it via https, and sometimes apache2 is automatically stopped.  Trying to restart it then causes this message:  "(98)Address already in use: AH00072: make_sock: could not bind to address [::]:443"

I followed the directions from http://docs.sentora.org/?node=102.  

Below are the configuration settings.  Have I missed something?

-------------------------------
SENTORA CONFIG
Sentora Apache Port     443     Sentora Apache panel port
-------------------------------

APACHE CONFIG
Apache Port     80     Apache service port

Code:

Global Sentora Entry     Extra directives for Sentora default vhost.
SSLEngine on
SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder On
SSLCipherSuite ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
SSLCertificateFile /etc/letsencrypt/live/admin.rstunlimited.us/cert.pem
SSLCertificateKeyFile /etc/letsencrypt/live/admin.rstunlimited.us/privkey.pem
SSLCertificateChainFile /etc/letsencrypt/live/admin.rstunlimited.us/chain.pem
# Keeping bellow for future upgrades.
# Requires Apache >= 2.4
SSLCompression off
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HTTPD-VHOSTS.CONF    
Listen 443
Listen 80

# Configuration for Sentora control panel.
<VirtualHost *:443>
ServerAdmin email@rstunlimited.us
DocumentRoot "/etc/sentora/panel/"
ServerName admin.rstunlimited.us
ErrorLog "/var/sentora/logs/sentora-error.log"
CustomLog "/var/sentora/logs/sentora-access.log" combined
CustomLog "/var/sentora/logs/sentora-bandwidth.log" common
AddType application/x-httpd-php .php
<Directory "/etc/sentora/panel/">
Options +FollowSymLinks -Indexes
   AllowOverride All
   Require all granted
</Directory>

# Custom settings are loaded below this line (if any exist)
SSLEngine on
SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder On
SSLCipherSuite ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
SSLCertificateFile /etc/letsencrypt/live/admin.rstunlimited.us/cert.pem
SSLCertificateKeyFile /etc/letsencrypt/live/admin.rstunlimited.us/privkey.pem
SSLCertificateChainFile /etc/letsencrypt/live/admin.rstunlimited.us/chain.pem
# Keeping bellow for future upgrades.

# Requires Apache >= 2.4

SSLCompression off
</VirtualHost>

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