problem in web.config file

<?xml version="1.0" encoding="utf-8" ?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <connectionStrings>
   <add name="cmsConnectionString" connectionString="data source= SEMANTIC-1\SA; uid=sa;pwd=pass; initial catalog=security service"></add>
      <!-- <add name="cmsConnectionString" connectionString="data source= Mukesh; uid=sa;pwd=pass; initial catalog=security service"></add>-->
  </connectionStrings>
  <appSettings>
    <add key="AdminUserName" value="Admin"/>
    <add key="AdminPassword" value="pass"/>
  </appSettings>
  <system.web>
    <pages enableEventValidation="false" />
    <httpRuntime requestValidationMode="2.0" />
    <compilation debug="true" targetFramework="4.0"/>
    <authentication mode="Forms">
      <forms loginUrl="~/Admin/Admin.aspx" defaultUrl="Admin/PageManagement.aspx" timeout="2880"/>
    </authentication>
    <authorization>
      <allow users="*"/>
    </authorization>

    <membership>
      <providers>
        <clear/>
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/"/>
      </providers>
    </membership>
    <profile>
      <providers>
        <clear/>
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
      </providers>
    </profile>
    <roleManager enabled="false">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/"/>
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/"/>
      </providers>
    </roleManager>
  </system.web>
  <location path="Admin">
    <system.web>
      <authorization>
        <deny users="?"/>
      </authorization>
    </system.web>
  </location>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
</configuration>