configulation error

Server Error in '/WebSite' Application.
--------------------------------------------------------------------------------

Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Unrecognized configuration section 'connectionStrings'

Source Error:


Line 10: <configuration>
Line 11: <appSettings/>
Line 12: <connectionStrings/>
Line 13: <system.web>
Line 14: <!--


Source File: c:\inetpub\wwwroot\WebSite\web.config Line: 12


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573


มันแจ้งerrorอย่างนี้แปลว่าอะไรคะแล้วแก้ไขอย่างไร ใครทราบช่วยแนะนำด้วยนะคะ