Fatal error: Uncaught Error: Call to undefined function add_action() in /home/www/ls4.cn/content/plugins/baidusubmit/baidusubmit.php:23 Stack trace: #0 /home/www/ls4.cn/content/plugins/baidusubmit/baidusubmit.php(101): BaiduSubmit->__construct() #1 /home/www/ls4.cn/init.php(69): include_once('/home/www/ls4.c...') #2 /home/www/ls4.cn/index.php(7): require_once('/home/www/ls4.c...') #3 {main} thrown in /home/www/ls4.cn/content/plugins/baidusubmit/baidusubmit.php on line 23