this is the error:

System.NullReferenceException was unhandled by user code
Message="Object reference not set to an instance of an object."
Source="Bill_Payments_System"
StackTrace:
at Bill_Payments_System.Form1.PrintDocument11_PrintPage(Object sender, PrintPageEventArgs e) in G:\Drive D\Bill1\Bill1\Form1.vb:line 85
at System.Drawing.Printing.PrintDocument.OnPrintPage(PrintPageEventArgs e)
at System.Drawing.Printing.PrintDocument._OnPrintPage(PrintPageEventArgs e)
at System.Drawing.Printing.PrintController.PrintLoop(PrintDocument document)
at System.Drawing.Printing.PrintController.Print(PrintDocument document)
at System.Drawing.Printing.PrintDocument.Print()
at System.Windows.Forms.PrintPreviewControl.ComputePreview()
at System.Windows.Forms.PrintPreviewControl.CalculatePageInfo()
InnerException: