Default Template
This setting determines the template file that is loaded by default (i.e. unless a 'template' cookie is set). Since it is allowed to have a tmplate shared by several copies of Contentor installed on a single site, this setting must contain the path from the site's root.
If you have installed Contentor only in a sub-directory, the template name should include that path (i.e. installed in '/contentor', template would be 'contentor/DefaultTemplate.php' - no initial '/').
If you already have a working template installed on the site, for example, in the '/template' folder as 'template.php', then the default template would be 'template/template.php'.
Do not include a leading '/' on the path/file name. There is no check to insure this is a valid file name. If this file does not exist, the site will produce an error.