/home/cheapwds/public_html/sitebuilder/tryoutlogin/www/rvsValidateConfigFile.php

You need to configure open_basedir for resellers who run the tryout module manually. In httpd.conf, locate reseller virtual host and add the bold text.

<VirtualHost ............>
.......
.......
<IfModule mod_php4.c>
php_admin_value open_basedir "/home/reseller/:/usr/lib/php:/usr/local/lib/php:/tmp:/var/cpanel/rvglobalsoft:/ioncube"
</IfModule>
<IfModule mod_php5.c>
php_admin_value open_basedir "/home/reseller/:/usr/lib/php:/usr/local/lib/php:/tmp:/var/cpanel/rvglobalsoft:/ioncube"
</IfModule>
........
</VirtualHost>	

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