created routes, but json parse error ate the end of transaction

plugins/fipfcard_plugin/php/menu/example_menu.php

@@ -1,5 +1,12 @@
 <?php
 
+/**
+ * it means someone outside wp is accessing the file, in this case kill it.
+ */
+if (!defined('ABSPATH')) {
+	die('You can not access this file!');
+}
+
 function fipfcard_plugin_content() {
 	$fipfcard = new PLGNTLS_class();