updated plugin WP Mail SMTP version 2.3.1

wp-content/plugins/wp-mail-smtp/src/Tasks/Tasks.php

@@ -23,6 +23,14 @@ class Tasks {
 	 */
 	public function init() {
 
+		// Hide the Action Scheduler admin menu item.
+		add_action( 'admin_menu', array( $this, 'admin_hide_as_menu' ), PHP_INT_MAX );
+
+		// Skip tasks registration if Action Scheduler is not usable yet.
+		if ( ! $this->is_usable() ) {
+			return;
+		}
+
 		// Register tasks.
 		foreach ( $this->get_tasks() as $task ) {
 			if ( ! is_subclass_of( $task, '\WPMailSMTP\Tasks\Task' ) ) {
@@ -36,8 +44,6 @@ class Tasks {
 				$new_task->init();
 			}
 		}
-
-		add_action( 'admin_menu', array( $this, 'admin_hide_as_menu' ), PHP_INT_MAX );
 	}
 
 	/**