I used the <test cache> button and it told me that the timestamp is off on my front page. The message suggests that I double check to make sure that it is not working. I am not sure but I don't think my site has actually been cached since 2010.
I pressed the <delete cache> button (mostly because I don't know what else to do to fix it. and I get the following error: Fatal error: Call to undefined function wp_cache_debug() in /home3/jkrytus/public_html/sqrft.net/wp-content/plugins/wp-super-cache/wp-cache.php on line 2491
Please help. I have no idea where to go from here.