Comment - There was an error in callback

Topics: ASP.NET 2.0
Oct 6, 2011 at 4:16 PM
Edited Oct 6, 2011 at 4:29 PM

While posting a Comments we get  "Sorry the following error occurred while processing your comment There was an error in callback "

User would get this message and their comment would not be displayed(But in fact comment is submitted but not displayed) with this users are posting duplicate comments.

Site is running fine from past 8 months and this issues started appearing from morning.