WordPress 3.1.3 [Media Error]

i’m using latest wordpress (3.1.3)

why wordpress 3.1.3 error at this line??

Warning: explode() expects parameter 2 to be string, array given in C:\xampp\htdocs\wpku\wordpress\wp-includes\query.php on line 2390

Warning: in_array() expects parameter 2 to be array, null given in C:\xampp\htdocs\wpku\wordpress\wp-includes\query.php on line 2399

I found the error in the media menu located on the dashboard
i’m use xampp for instalation

if you want to fix it
download wordpress hotfix

thanks