Hello Nigel,
I found this in the log files(does this help):2014-06-12 08:05:44,205 [DEV4][Thread:3][FATAL] DotNetNuke.Framework.PageBase - An error has occurred while loading page.
System.ArgumentException: '', hexadecimal value 0x1F, is an invalid character.
at System.Xml.XmlUtf8RawTextWriter.InvalidXmlChar(Int32 ch, Byte* pDst, Boolean entitize)
at System.Xml.XmlUtf8RawTextWriter.WriteCDataSection(String text)
at System.Xml.XmlUtf8RawTextWriter.WriteCData(String text)
at System.Xml.XmlWellFormedWriter.WriteCData(String text)
at CartViper.Modules.Store.Catalog.CatalogExport.CatalogExportImport.OutPutPropertyValues(XmlWriter writer, Object baseObject, Dictionary`2 properties) in C:\Users\nigel\Documents\Source Code\dnnMobile\DesktopModules\cartviper\CartViper.Store\Catalog\CatalogExport\CatalogExportImport.cs:line 105
at CartViper.Modules.Store.Catalog.CatalogExport.CatalogExportImport.CreateProductXml(String locale, Int32 portalId) in C:\Users\nigel\Documents\Source Code\dnnMobile\DesktopModules\cartviper\CartViper.Store\Catalog\CatalogExport\CatalogExportImport.cs:line 605
at CartViper.Modules.Store.Catalog.CatalogExport.CatalogExportImport.OutPutdata(DataType dataType, String locale, Int32 portalId) in C:\Users\nigel\Documents\Source Code\dnnMobile\DesktopModules\cartviper\CartViper.Store\Catalog\CatalogExport\CatalogExportImport.cs:line 33
at CartViper.Modules.Store.WebControls.ExportCatalogAdmin.btnExport_Click(Object sender, EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2014-06-12 08:05:44,246 [DEV4][Thread:3][ERROR] DotNetNuke.Services.Exceptions.Exceptions - ~/Default.aspx?tabid=1215&error=%27%1f%27%2c+hexadecimal+value+0x1F%2c+is+an+invalid+character.&content=0
System.ArgumentException: '', hexadecimal value 0x1F, is an invalid character.
at System.Xml.XmlUtf8RawTextWriter.InvalidXmlChar(Int32 ch, Byte* pDst, Boolean entitize)
at System.Xml.XmlUtf8RawTextWriter.WriteCDataSection(String text)
at System.Xml.XmlUtf8RawTextWriter.WriteCData(String text)
at System.Xml.XmlWellFormedWriter.WriteCData(String text)
at CartViper.Modules.Store.Catalog.CatalogExport.CatalogExportImport.OutPutPropertyValues(XmlWriter writer, Object baseObject, Dictionary`2 properties) in C:\Users\nigel\Documents\Source Code\dnnMobile\DesktopModules\cartviper\CartViper.Store\Catalog\CatalogExport\CatalogExportImport.cs:line 105
at CartViper.Modules.Store.Catalog.CatalogExport.CatalogExportImport.CreateProductXml(String locale, Int32 portalId) in C:\Users\nigel\Documents\Source Code\dnnMobile\DesktopModules\cartviper\CartViper.Store\Catalog\CatalogExport\CatalogExportImport.cs:line 605
at CartViper.Modules.Store.Catalog.CatalogExport.CatalogExportImport.OutPutdata(DataType dataType, String locale, Int32 portalId) in C:\Users\nigel\Documents\Source Code\dnnMobile\DesktopModules\cartviper\CartViper.Store\Catalog\CatalogExport\CatalogExportImport.cs:line 33
at CartViper.Modules.Store.WebControls.ExportCatalogAdmin.btnExport_Click(Object sender, EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2014-06-12 08:05:44,262 [DEV4][Thread:3][ERROR] DotNetNuke.Services.Log.EventLog.DBLoggingProvider - System.ArgumentException: '', hexadecimal value 0x1F, is an invalid character.
at System.Xml.XmlEncodedRawTextWriter.InvalidXmlChar(Int32 ch, Char* pDst, Boolean entitize)
at System.Xml.XmlEncodedRawTextWriter.WriteElementTextBlock(Char* pSrc, Char* pSrcEnd)
at System.Xml.XmlEncodedRawTextWriter.WriteString(String text)
at System.Xml.XmlWellFormedWriter.WriteString(String text)
at System.Xml.XmlWriter.WriteElementString(String localName, String ns, String value)
at DotNetNuke.Services.Log.EventLog.LogDetailInfo.WriteXml(XmlWriter writer)
at DotNetNuke.Services.Log.EventLog.LogProperties.WriteXml(XmlWriter writer)
at DotNetNuke.Services.Log.EventLog.LogProperties.Serialize()
at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.WriteLog(LogQueueItem logQueueItem)
2014-06-12 08:05:44,268 [DEV4][Thread:3][ERROR] DotNetNuke.Services.Log.EventLog.LogController - System.Threading.ThreadAbortException: Thread was being aborted.
at System.Threading.Thread.AbortInternal()
at System.Threading.Thread.Abort(Object stateInfo)
at System.Web.HttpResponse.AbortCurrentThread()
at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.WriteLog(LogQueueItem logQueueItem)
at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.AddLog(LogInfo logInfo)
at DotNetNuke.Services.Log.EventLog.LogController.AddLog(LogInfo logInfo)