Fatal error: Uncaught Error: Call to undefined function add_action() in C:\xampp\htdocs\wp-content\plugins\chatbot\includes\class-common-function.php:18 Stack trace: #0 C:\xampp\htdocs\wp-content\plugins\chatbot\includes\class-common-function.php(12): Qcld_WPBot_Common_Functions->__construct() #1 C:\xampp\htdocs\wp-content\plugins\chatbot\includes\class-common-function.php(145): Qcld_WPBot_Common_Functions::instance() #2 {main} thrown in C:\xampp\htdocs\wp-content\plugins\chatbot\includes\class-common-function.php on line 18