Fatal error: Uncaught Error: Call to undefined function add_action() in D:\server\htdocs\wp-content\themes\Divi\includes\builder\feature\SplitLibrary.php:47 Stack trace: #0 D:\server\htdocs\wp-content\themes\Divi\includes\builder\feature\SplitLibrary.php(38): ET_Builder_Split_Library->_register_ajax_callbacks() #1 D:\server\htdocs\wp-content\themes\Divi\includes\builder\feature\SplitLibrary.php(28): ET_Builder_Split_Library->__construct() #2 D:\server\htdocs\wp-content\themes\Divi\includes\builder\feature\SplitLibrary.php(351): ET_Builder_Split_Library::instance() #3 {main} thrown in D:\server\htdocs\wp-content\themes\Divi\includes\builder\feature\SplitLibrary.php on line 47