Enable Deployment on Virtual Host

To deploy applications on this system-defined virtual host, you will first need to enable deployment.
Since Zend Server does not have write permissions for the virtual host's configuration files on your Web server, add the following line of code:

#ZEND-CONFIG
{{ wizard.addLine}}
#ZEND-CONFIG

to the virtual host section in the configuration files of all your servers, located at:

{{ wizard.toPath}}

Example

server {
    listen 80;
    root /var/www;
     #ZEND-CONFIG
{{ wizard.addLine}}
#ZEND-CONFIG

}
<VirtualHost *:80>
    #ZEND-CONFIG
    {{ wizard.addLine}}
    #ZEND-CONFIG
    DocumentRoot /var/www
    ...
    #ZEND-CONFIG
    {{ wizard.addLine}}
    #ZEND-CONFIG
</VirtualHost>

Enable Deployment on Virtual Host

There's an error enabling deployment on that virtual host.

Either there is an error in virtual host configuration, or one of the servers is not valid/responding