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 Ephere.Web.Applications.Ephere.Pages.Document.GetDocumentFromForum(RequestContext context, User user, String projectNameShort, String documentName) in C:\Projects\Ephere\Web\Applications\Ephere\Pages\Document.cs:line 158 at Ephere.Web.Applications.Ephere.Pages.Document.Process(RequestContext context) in C:\Projects\Ephere\Web\Applications\Ephere\Pages\Document.cs:line 148 at Ephere.Web.Ui.HtmlProcessor.ProcessRequestUnsafe(String filePath, Uri absoluteUri, NameValueCollection queryParameters, NameValueCollection formParameters, HttpCookieCollection requestCookies, String serverRootDirectoryPath, Stream output, HttpCookieCollection responseCookies, Boolean isLocalRequest, Int32& statusCode, IUserSessionHandler sessionManager, String ipAddress) in C:\Projects\Ephere\Web\Ui\HtmlProcessor.cs:line 557