Tableview scrolling faster upto end of the row last row making ERROR

Hi Friends,

I have created Tableview with scrolling event for iPhone. I can scroll upto end of the tableview row. If I reached end row shown one error : Out of range skip the data. How to solve the issue in iOS. Please help me quickly.

Here below I have shown my code :

tableview.addEventListener('dragEnd', function()
    {   
        if(pulling && !reloading)
        {
            reloading = true;
            pulling = false;
            arrow.hide();
            actInd.show();
            statusLabel.text = "Reloading...";
            tv.setContentInsets({top:60},{animated:true});
            tv.scrollToTop(-60,true);
            arrow.transform=Ti.UI.create2DMatrix();
            beginReloading();
        }
    });