AddItem method not working in script,causing Application crash

Hi All,

Can someone please help on below script issue:

Here is the test product structure:

Fijo_old(Root Customizable product,Service Bundle)

  SFIDdummyrelationship(Relationship)

     POCDummy(Customizable product under Fijo_old)

         PromotionPOCDummy(Relationship)

              PromotionPOCDummy(Product added under POCDummy)

Script is kept under Fijo_old under Cfg_ChildItemChanged in scripts.

When running following script,looks like the AddItem method is making the application crash on selecting the product POCDummy in configurator:

function Cfg_ChildItemChanged (ChangedItem) {                var nCnt = ChangedItem.GetChildCount();                 var x;                 var item;                 var item_id;                 var item_name;                 var new_val;                         for ( var i = 0; i<nCnt; i++)                                              {      AddItem( "$.[Fijo_old]#1.[SFIDdummyrelationship]#[POCDummy]", "PromotionPOCDummy", "PromotionPOCDummy", "1");