I just found something interesting, in the Event Viewer (Siri maybe this is what you where referring too) ModuleId: -1 ModuleDefId: -1 FriendlyName: ModuleControlSource: AssemblyVersion: 5.0.1 PortalID: 15 PortalName: xx UserID: 1 UserName: host ActiveTabID: 370 ActiveTabName: Home RawURL: /Home/tabid/370/ctl/Edit/mid/815/ProductID/0/Default.aspx AbsoluteURL: /Default.aspx AbsoluteURLReferrer: xx UserAgent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3 DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider ExceptionGUID: afc5994a-0bda-4a55-a167-13e639f80a2a InnerException: Input string was not in a correct format. FileName: FileLineNumber: 0 FileColumnNumber: 0 Method: System.Number.StringToNumber StackTrace: Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Input string was not in a correct format. ---> System.FormatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at DotNetNuke.Modules.Store.WebControls.ProductEdit.cmdUpdate_Click(Object sender, EventArgs e) --- End of inner exception stack trace --- Source: Server Name: IIS1100 -- ModuleId: 815 ModuleDefId: 112 FriendlyName: Store Catalog ModuleControlSource: DesktopModules/Store/Catalog.ascx AssemblyVersion: 5.0.1 PortalID: 15 PortalName: xx UserID: 1 UserName: host ActiveTabID: 370 ActiveTabName: Home RawURL: /default.aspx AbsoluteURL: /default.aspx AbsoluteURLReferrer xx UserAgent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3 DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider ExceptionGUID: 51222886-acf9-46d6-9246-8d395fae0354 InnerException: Object reference not set to an instance of an object. FileName: FileLineNumber: 0 FileColumnNumber: 0 Method: DotNetNuke.Modules.Store.WebControls.Catalog.Page_Load StackTrace: Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Modules.Store.WebControls.Catalog.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace --- Source: Server Name: IIS1100

Hi Craig,

Siri's idea was right, but this error occurs when you try to add a product without a category. This is an old error and it's not related to your current problem.
The first time, I have not read correctly your error message and Sebastian was right as usual! ;-) The first line is: Error loading files from temporary folder - see below
This error seems to be related to a permission problem! If you can connect to your server with TFS, try to re-apply the correct file permissions to the root folder and all subfolders. Normaly, the user account defined in the AppPool used with this website must have at the minimum the right 'Modify'.

Gilles

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We (team members) are Humans offering their knowledge, their work and their spare time FOR FREE to benefit the community. It would be so particularly appreciated that your messages begin with "Hello" and end with "Thank you" or any other form of politeness. Ask yourself what your reaction would be, if you were approached by me (a total stranger) on the street to ask you something without saying "Hello" nor "Thank you"? After several years of services dedicated to the community, I begin to be tired to read requests without any form of politeness.

Hi Craig,

If you have an FTP access to your website, send me an email at: glepigocher AT yahoo.fr. I will send you a much more advanced file than the one from DNNCreative to verify all permissions.

Gilles

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We (team members) are Humans offering their knowledge, their work and their spare time FOR FREE to benefit the community. It would be so particularly appreciated that your messages begin with "Hello" and end with "Thank you" or any other form of politeness. Ask yourself what your reaction would be, if you were approached by me (a total stranger) on the street to ask you something without saying "Hello" nor "Thank you"? After several years of services dedicated to the community, I begin to be tired to read requests without any form of politeness.