My_Web_Tabs dll error

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.Runtime.Serialization.SerializationException: There was an error deserializing the object of type System.Collections.Generic.List`1[[URLTabPlugin, URLTabPlugin, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]. Encountered unexpected character '1'. ---> System.Xml.XmlException: Encountered unexpected character '1'.
   at System.Xml.XmlExceptionHelper.ThrowXmlException(XmlDictionaryReader reader, XmlException exception)
   at System.Runtime.Serialization.Json.XmlJsonReader.ReadEscapedCharacter(Boolean moveToText)
   at System.Runtime.Serialization.Json.XmlJsonReader.Read()
   at System.Xml.XmlDictionaryReader.ReadContentAsString(Int32 maxStringContentLength)
   at System.Xml.XmlBaseReader.ReadContentAsString()
   at System.Xml.XmlBaseReader.ReadElementContentAsString()
   at System.Runtime.Serialization.XmlReaderDelegator.ReadElementContentAsString()
   at ReadURLTabPluginFromJson(XmlReaderDelegator , XmlObjectSerializerReadContextComplexJson , XmlDictionaryString , XmlDictionaryString[] )
   at System.Runtime.Serialization.Json.JsonClassDataContract.ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)
   at System.Runtime.Serialization.Json.JsonDataContract.ReadJsonValue(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)
   at System.Runtime.Serialization.Json.XmlObjectSerializerReadContextComplexJson.ReadDataContractValue(DataContract dataContract, XmlReaderDelegator reader)
   at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, DataContract& dataContract)
   at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Int32 id, RuntimeTypeHandle declaredTypeHandle, String name, String ns)
   at System.Runtime.Serialization.XmlObjectSerializerReadContextComplex.InternalDeserialize(XmlReaderDelegator xmlReader, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, String name, String ns)
   at ReadArrayOfURLTabPluginFromJson(XmlReaderDelegator , XmlObjectSerializerReadContextComplexJson , XmlDictionaryString , XmlDictionaryString , CollectionDataContract )
   at System.Runtime.Serialization.Json.JsonCollectionDataContract.ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)
   at System.Runtime.Serialization.Json.JsonDataContract.ReadJsonValue(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)
   at System.Runtime.Serialization.Json.XmlObjectSerializerReadContextComplexJson.ReadDataContractValue(DataContract dataContract, XmlReaderDelegator reader)
   at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator reader, String name, String ns, DataContract& dataContract)
   at System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(XmlReaderDelegator xmlReader, Type declaredType, DataContract dataContract, String name, String ns)
   at System.Runtime.Serialization.XmlObjectSerializerReadContextComplex.InternalDeserialize(XmlReaderDelegator xmlReader, Type declaredType, DataContract dataContract, String name, String ns)
   at System.Runtime.Serialization.Json.DataContractJsonSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName)
   at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName)
   --- End of inner exception stack trace ---
   at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName)
   at System.Runtime.Serialization.Json.DataContractJsonSerializer.ReadObject(XmlDictionaryReader reader)
   at System.Runtime.Serialization.Json.DataContractJsonSerializer.ReadObject(Stream stream)
   at Tabs.BuildSubURLTabs(Object sender, EventArgs ev, TabTypes tt)
   at Tabs.LocationBrowserVisibilityChanged(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
   at System.Windows.Forms.ScrollableControl.OnVisibleChanged(EventArgs e)
   at System.Windows.Forms.Control.OnParentVisibleChanged(EventArgs e)
   at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e)
   at System.Windows.Forms.ScrollableControl.OnVisibleChanged(EventArgs e)
   at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
   at System.Windows.Forms.TabPage.set_Visible(Boolean value)
   at System.Windows.Forms.TabControl.UpdateTabSelection(Boolean updateFocus)
   at System.Windows.Forms.TabControl.OnSelectedIndexChanged(EventArgs e)
   at System.Windows.Forms.TabControl.WmSelChange()
   at System.Windows.Forms.TabControl.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)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
LTClient
    Assembly Version: 51.155.4717.26527
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
System.Drawing
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Data
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
System.Xml
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 8.0.0.0
    Win32 Version: 8.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
Interfaces
    Assembly Version: 1.5.4666.37090
    Win32 Version: 1.5.4666.37090
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/Interfaces.DLL
----------------------------------------
DevExpress.BonusSkins.v11.2
    Assembly Version: 11.2.6.0
    Win32 Version: 11.2.6.0
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/DevExpress.BonusSkins.v11.2.DLL
----------------------------------------
System.Configuration
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
DevExpress.Utils.v11.2
    Assembly Version: 11.2.6.0
    Win32 Version: 11.2.6.0
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/DevExpress.Utils.v11.2.DLL
----------------------------------------
MySql.Data
    Assembly Version: 5.2.7.0
    Win32 Version: 5.2.7.0
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/MySql.Data/5.2.7.0__c5687fc88969c44d/MySql.Data.dll
----------------------------------------
System.Transactions
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_32/System.Transactions/2.0.0.0__b77a5c561934e089/System.Transactions.dll
----------------------------------------
System.Web.Services
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Web.Services/2.0.0.0__b03f5f7f11d50a3a/System.Web.Services.dll
----------------------------------------
System.EnterpriseServices
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_32/System.EnterpriseServices/2.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
----------------------------------------
System.Web
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_32/System.Web/2.0.0.0__b03f5f7f11d50a3a/System.Web.dll
----------------------------------------
LTLicenseManager
    Assembly Version: 2.0.0.2
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
Backup.SymantecBackupExec
    Assembly Version: 5.1.1.1
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
LTDeploymentManager
    Assembly Version: 2.0.4457.29108
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
URLTabPlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
IgnitePlugin
    Assembly Version: 1.0.0.20
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
Interop.WODVPNCOMLib
    Assembly Version: 1.0.0.0
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
AxInterop.VisioViewer
    Assembly Version: 1.3.0.0
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
Interop.VisioViewer
    Assembly Version: 1.3.0.0
    Win32 Version: 51.155.4717.26527
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/LTClient.exe
----------------------------------------
DevExpress.XtraEditors.v11.2
    Assembly Version: 11.2.6.0
    Win32 Version: 11.2.6.0
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/DevExpress.XtraEditors.v11.2.DLL
----------------------------------------
DevExpress.Data.v11.2
    Assembly Version: 11.2.6.0
    Win32 Version: 11.2.6.0
    CodeBase: file:///C:/Program%20Files%20(x86)/LabTech%20Client/DevExpress.Data.v11.2.DLL
----------------------------------------
System.ServiceModel.Web
    Assembly Version: 3.5.0.0
    Win32 Version: 3.5.594.4926
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.ServiceModel.Web/3.5.0.0__31bf3856ad364e35/System.ServiceModel.Web.dll
----------------------------------------
System.Runtime.Serialization
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.4506.4926 (NetFXw7.030729-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Runtime.Serialization/3.0.0.0__b77a5c561934e089/System.Runtime.Serialization.dll
----------------------------------------
System.ServiceModel
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.4506.4926 (NetFXw7.030729-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.ServiceModel/3.0.0.0__b77a5c561934e089/System.ServiceModel.dll
----------------------------------------
SMDiagnostics
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.4506.4926 (NetFXw7.030729-4900)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/SMDiagnostics/3.0.0.0__b77a5c561934e089/SMDiagnostics.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.