Please try the steps below and tell me the result:
1. Open IE, Go to "Tools" --> "Internet Options".
2. Choose "Advanced" tab, Uncheck "Show Friendly Error Message".
3. Reload the page, you should see a more detailed error message.
Keep me posted
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx