warning message on google with some search results

I am running dance studio website and Google is displaying some search results differently…
the website is
When I search ballroom dancing jacksonville is great but ballroom dancing shows
Warning: main(/home/content/*****/wp-includes/load.php) [function.main]: failed to ..
Google has indexed the pages couple of times but the error is still there
out of knowledge at this point and any advice would be great