Error

I downloaded wpmu into my wordpress site and see the following above my site http://www.dvideoproductions.com "Warning: explode() [function.explode]: Empty delimiter in /data/25/2/5/126/2657126/user/2916714/htdocs/dvideoinc/wp-content/themes/striking/framework/functions/filter.php on line 81 Warning: Invalid argument supplied for foreach() in /data/25/2/5/126/2657126/user/2916714/htdocs/dvideoinc/wp-content/themes/striking/framework/functions/filter.php on line 83"