Security Exception coming in a running asp.net website

Question

 

 I am getting this error when I am trying to call above function.

var controller = new createCustomerProfileController(request); // instantiate the contoller that will call the service
ontroller.Execute();

 

Error :- Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

 

 I have tried  my app.config file.

 

<system.web>
<securityPolicy>
<trustLevel name="Full" policyFile="internal"/>
</securityPolicy>
</system.web>

 

Please help me to solve this issue.