主题支持出现以下错误，和WPJAM-BASIC 有关

Warning: call_user_func() expects parameter 1 to be a valid callback, function 'wpjam_theme_support_page' not found or invalid function name in /www/wwwroot/www.zuoyl.com/wp-content/plugins/wpjam-basic/php5/include/admin/admin-menus.php on line 188

请问如何解决？