ERROR EXECPTION APPEAR AFTER CLICKING SAVE & GENERATE XML

ERROR EXECPTION APPEAR AFTER CLICKING SAVE & GENERATE XML

hi pls pa help po na update narin namin ung rebuild (April 12) then na update na din ung rdl ung ngayon lang na rdl. and still d maka pag save and generate xml nag eerror exception paulit ulit lang.. pa help po.

Application: BizBox Philhealth Information System 8.0
Version: 8.26.11.17
=============== EXCEPTION =================
Type: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: BizBox Philhealth Information System 8.0
Stack Trace: at BizBox.PHIC.CoreComponents.Others.frmClaimForm4Xml.frmClaimForm4Xml_Load(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)