Warning: file_get_contents(advanced-cache.php

I am getting the following warning every time I try to activate WP Super Cache on WP 3.5.1.

Warning: file_get_contents(advanced-cache.php) [function.file-get-contents]: failed to open stream: No such file or directory in /home/crossfit/public_html/wp-content/plugins/wp-super-cache/wp-cache.php on line 2091
Error: Sample WP-Cache config file (wp-cache-config-sample.php) does not exist.Verify you installation.
Cannot continue... fix previous problems and retry.

Here is a screenshot. http://i.imgur.com/WkvWI1s.png

This is for a client’s website and I would like to fix this soon. Thanks for all of your help!

http://wordpress.org/extend/plugins/wp-super-cache/