Step 1: Turn on identity
You can manually add identity to StateLogId column
If you use SQL Script:

    ALTER   TABLE   CuteChatTempStateLog   DROP   COLUMN   StateLogId 
    GO
    ALTER   TABLE   CuteChatTempStateLog   ADD   StateLogId   INT   IDENTITY(1,1)

    GO
 
Step 2: Modify configuration (web.config)

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