Please any One Help...

<?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
    <connectionStrings>
    <remove name="connectionstr" />
    <add name="connectionstr" connectionString="Data Source=servername;Initial Catalog=dbname;Persist Security Info=True;User ID=userid;Password=Password; providerName="System.Data.SqlClient"/>
  </connectionStrings>
    <system.web>
    <!--<authentication mode="Windows"></authentication>-->
        <customErrors mode="Off"/>
        <compilation debug="true" targetFramework="4.0">
        </compilation>
        <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/></system.web>

    <system.web>
    <authorization>
      <allow users="?" />
      <allow roles="admin" />
    </authorization>
    <roleManager enabled="true" />
    <authentication mode="Forms" />
        <anonymousIdentification enabled="true"/>
        <profile enabled="true">
            <properties>
                <add name="MyCart" serializeAs="Binary" type="cart.Cart" allowAnonymous="true"/>
            </properties>
        </profile>
    </system.web>

    <system.webServer>
        <httpErrors errorMode="Detailed"/>
        <asp scriptErrorSentToBrowser="true"/>
    </system.webServer>
</configuration>