I ran this code through a debugger; it returned with no faults.
do {
foreach ( (array) current($wp_filter[$tag]) as $the_ )
if ( !is_null($the_['function']) )
call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
} while ( next($wp_filter[$tag]) !== false );
array_pop($wp_current_filter);
Warning: Parameter 1 to wp_default_styles() expected to be a reference, value given in /homepages/27/d653904259/htdocs/clickandbuilds/Jellyx/wp-includes/plugin.php on line 600
Line 600:
call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));