Class 'CG_TVS_Plugin' not found

Hi I have just downloaded the plugin and started using it. It doesn’t allow me to log in to my dashboard and throws the following error.

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Warning: include_once(class-cg-tvs-plugin.php) [function.include-once]: failed to open stream: No such file or directory in /home2/ch7tgf23/public_html/wp-content/plugins/timthumb-vulnerability-scanner/timthumb-vulnerability-scanner.php on line 15

Warning: include_once() [function.include]: Failed opening ‘class-cg-tvs-plugin.php’ for inclusion (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home2/ch7tgf23/public_html/wp-content/plugins/timthumb-vulnerability-scanner/timthumb-vulnerability-scanner.php on line 15

Fatal error: Class ‘CG_TVS_Plugin’ not found in /home2/ch7tgf23/public_html/wp-content/plugins/timthumb-vulnerability-scanner/timthumb-vulnerability-scanner.php on line 16
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My site is http://chinesecuisineingredients.com

http://wordpress.org/extend/plugins/timthumb-vulnerability-scanner/