Fatal error: Uncaught Error: Call to undefined function ElementPack\add_action() in D:\www\wordpress - 安裝環境+外掛測試\02.外掛程式\常用外掛\bdthemes-element-pack\admin\admin-notice.php:23 Stack trace: #0 D:\www\wordpress - 安裝環境+外掛測試\02.外掛程式\常用外掛\bdthemes-element-pack\admin\admin-notice.php(16): ElementPack\Notices->__construct() #1 D:\www\wordpress - 安裝環境+外掛測試\02.外掛程式\常用外掛\bdthemes-element-pack\admin\admin-notice.php(214): ElementPack\Notices::get_instance() #2 {main} thrown in D:\www\wordpress - 安裝環境+外掛測試\02.外掛程式\常用外掛\bdthemes-element-pack\admin\admin-notice.php on line 23