/home/innerdem/public_html/rvsitebuilder/tryoutlogin/www/rvsValidateConfigFile.php

Contact your hosting provider, to manually update your custom_vhost_template_ap1 and custom_vhost_template_ap2 values.
Your provider can update your custom_vhost_template_ap1 and custom_vhost_template_ap2 values by follow instruction here.

After fix the issue, click here to go to your tryout website.