.ASPX script no longer working?

I recently had a .aspx file set up through PDFEmail.net and uploaded it onto a website to send out PDF form information via a "submit" button to my client's e-mail inbox.  This system worked just fine up until about two months ago, at which point the completed pdf forms were no longer showing up in the client's e-mail.  Could someone please take a look at the script and see if there's something wrong?
<%@ Page Language="VB" Debug="FALSE" %> <%@ import Namespace="System.Net.Mail" %> <%@ import Namespace="System.IO" %> <%@ import Namespace="FDFApp" %> <script runat="server">     '**********************************************************     '****PDFEMAIL.NET - EMAIL PDF SCRIPT GENERATOR     '****DocsOnly Service Request     '****9/28/2012     '** ...