Try adding it to Admin > Module Admin > Apache Config > Global Sentora Entry:
Use exactly as it shows above. Save and wait for the daemon to run, ~5 minutes. You should be good to go then.
Code:
</VirtualHost>
<VirtualHost *:80>
ServerAdmin admin@test.com
ServerName gpanel.konzor.com
ServerAlias mcpanel.konzor.com
DocumentRoot /srv/pufferpanel/public
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined