Need help to resolve a "Microsoft .NET Framework" error. Says Unhandled exception occured in your application

What does this mean?  How do I fix it? 

 "Microsoft .NET Framework" error: 

See the end of this message for details on invoking 

just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************

System.Xml.XmlException: Invalid XML document. The document does not have a root element.

   at System.Xml.XmlDocument.Save(String filename)

   at HPSSFUpdater.UpgradeUpdater.IsUpdateNeeded()

   at HPSSFUpdater.View.MainWindow._bgWorker_DoWork(Object sender, DoWorkEventArgs e)

   at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)

   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)

************** Loaded Assemblies **************

mscorlib

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C

    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll

---

HPSSFUpdater

    Assembly Version: 8.11.0.1

    Win32 Version: 8.11.0.1

    CodeBase: file:///C:/Program%20Files%20(x86)/Hewlett-Packard/HP%20Support%20Solutions/Modules/HPSSFUpdater.exe

---

System

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.4200.0 built by: NET48REL1LAST_C

    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll

---

System.Windows.Forms

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C

    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

---

System.Drawing

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.3752.0 built by: NET48REL1

    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

---

System.Configuration

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.4190.0 built by: NET48REL1LAST_B

    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

---

System.Core

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.4220.0 built by: NET48REL1LAST_C

    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll

---

System.Xml

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.3752.0 built by: NET48REL1

    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll

---

WindowsBase

    Assembly Version: 4.0.0.0

    Win32 Version: 4.8.4220.0 built by: NET48REL1LAST_C

    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/WindowsBase/v4.0_4.0.0.0__31bf3856ad364e35/WindowsBase.dll

---

HP.SSF.Config

    Assembly Version: 3.6.6.0

    Win32 Version: 3.6.6.0

    CodeBase: file:///C:/Program%20Files%20(x86)/Hewlett-Packard/HP%20Support%20Solutions/Modules/UpdaterTemp/HPSSFUpdater/HP.SSF.Config1.dll

---

HP.SupportFramework.Common

    Assembly Version: 8.0.0.0

    Win32 Version: 8.14.49.15

    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/HP.SupportFramework.Common/8.0.0.0__41bdec5abf54f6dc/HP.SupportFramework.Common.dll

---

************** JIT Debugging **************

To enable just-in-time (JIT) debugging, the .config file for this

application or computer (machine.config) must have the

jitDebugging value set in the system.windows.forms section.

The application must also be compiled with debugging

enabled.

For example:

<configuration>

    <system.windows.forms jitDebugging="true" />

</configuration>

When JIT debugging is enabled, any unhandled exception

will be sent to the JIT debugger registered on the computer

rather than be handled by this dialog box.