Thanks for the help Ahir.
Because I really don't understand this stuff, could you provide a little more detail? I have found the file /home2/gridless/public_html/wp-content/advanced-cache.php through the bluehost c-panel. Am I just to delete this file? Are there any risks to this action that i could mitigate?
I am not very confident making changes in the c-panel, any additional information would be great, thanks.