have some problems with asp.net webpartzone...

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ASP.NET

Hi.
I'm using webpartzone in my application in asp.net 2010 but i have some problems. when I run the application it gives error from sql connection while i have no connection in it. when i delete webpart components from my website everything is right and project runs with no error. the error text is:

"Server Error in '/WebSite3' Application.

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)"


i couldn't found any solutions for this problem, please help me!

thanks.