Affiliate Server Error

I received the following error trying to get statistics from the Doyle's Room affiliate server.

Server Error in '/' Application.

Timeout expired.
The timeout period elapsed prior to completion of the operation or the server is not responding.

Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details:
System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:
[SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.]
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) +740
System.Data.SqlClient.SqlCommand.ExecuteReader() +41
AffManAdmin.Agent.GetInfoForDates() in c:\inetpub\wwwroot\affmanadmin\agent.cs:829
AffMan.aff_rep.DoPage() in c:\inetpub\wwwroot\affman\aff_rep.aspx.cs:83
AffMan.aff_rep.Button1_Click(Object sender, EventArgs e) in c:\inetpub\wwwroot\affman\aff_rep.aspx.cs:309
System.Web.UI.WebControls.Button .OnClick(EventArgs e) +108
System.Web.UI .WebControls.Button .System.Web
.UI.IPostBackEventHandler. RaisePostBackEvent (String eventArgument) +57
System.Web.UI.Page.RaisePostBackEvent (IPostBackEventHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain() +1292

Version Information: Microsoft .NET Framework Version:1.1.4322.2032; ASP.NET Version:1.1.4322.2032