fix

www/application/models/Backend_model.php

@@ -20,6 +20,11 @@ class Backend_model extends CI_Model {
     public function wrenchboard_api($in, $out = array()) {
         $this->wrenchboard_load();
         $ret = $this->wrenchboard->wrenchboard_api($in, $out);
+
+      //  var_dump($ret);
+      //  echo "-----";
+     //   var_dump($out);
+    //    exit();
         return $ret;
     }