error messages

Take a look at: http://kentcountystar.com/featured-news/grand-rapids-pride-celebrates-communit/69/

I am getting these weird error messages in the comment area

Illegal offset type in /home/content/p/m/p/pmp47/html/kentcountystar/wp-includes/cache.php on line 361

Warning: mysql_real_escape_string() expects parameter 1 to be string, object given in /home/content/p/m/p/pmp47/html/kentcountystar/wp-includes/wp-db.php on line 791