one or more pages in our discussions are getting this error, sometimes it is page two of a discussion, sometimes the first page. This has never happened before, now it is happening in at least a dozen threads. HELP! I am not sure how to find out what version we are running.
Server Error in '/' Application.
Value cannot be null.
Parameter name: replacement
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: replacement
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[ArgumentNullException: Value cannot be null.
Parameter name: replacement]
System.Text.RegularExpressions.Regex.Replace(String input, String replacement, Int32 count, Int32 startat) +7073484
System.Text.RegularExpressions.Regex.Replace(String input, String replacement) +59
YAF.Controls.UserBox.MatchUserBoxAvatar(String userBox) +468
YAF.Controls.UserBox.CreateUserBox() +291
YAF.Controls.UserBox.Render(HtmlTextWriter output) +150
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
YAF.Core.ForumPage.Render(HtmlTextWriter writer) in D:\Inetpub\wwwroot\www.lazaris.com\YAF.Core\BasePages\ForumPage.cs:561
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
YAF.Forum.Render(HtmlTextWriter writer) +525
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +253
System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +87
System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +53
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +240
System.Web.UI.Page.Render(HtmlTextWriter writer) +38
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4240
Version Information: Microsoft .NET Framework Version:2.0.50727.5466; ASP.NET Version:2.0.50727.5710