网站运行提示出错

开始还好好的  突然提示出现服务器错误500什么的
用IE   返回的结果提示是：
PHP Warning:  Missing argument 2 for dt_f_slider_col_thumb() in D:\websoft\web\wordpress\wp-content\themes\dt-cardamon\functions\modules\dt-slideshows\filters.php on line 107
下面是PHP的第107行开始的源代码
望大师帮忙修改
我是小白
add_filter('manage_edit-dt_slider_columns', 'dt_f_slider_col_thumb', 5);

function dt_f_slider_hide_mboxes( $hidden, $screen, $use_defaults ) {
    $template = dt_core_get_template_name();
    if( 'dt-slideshow-fullwidth.php' == $template ||
        'dt-slideshow-sidebar.php' == $template ||
        'dt-homepage-blog.php' == $template ) {
        $meta_boxes = dt_core_get_metabox_list();
        if( !empty($meta_boxes) ) {
            $hidden = array_unique( array_merge($hidden, $meta_boxes) );
            
            foreach( $hidden as $index=>$box ){
                if( 'dt_page_box-slideshows_list' == $box ||
                    'dt_page_box-slideshows_options' == $box ||
                    'dt_page_box-footer_options' == $box ||
                    ('dt-slideshow-sidebar.php' == $template && 'dt_page_box-sidebar_options' == $box)
                ) {
                    unset( $hidden[$index] );
                }
            }
        }
    }
    return $hidden;