View file File name : bootstrap.php Content :<?php use NewfoldLabs\WP\ModuleLoader\Container; use NewfoldLabs\WP\Module\Deactivation\Deactivation; if ( function_exists( 'add_action' ) ) { add_action( 'newfold_container_set', function( Container $container ) { new Deactivation( $container ); } ); }