Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: That assembly does not allow partially trusted callers.

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C#2.0

C#3.0

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C#4.0

C#3.5

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protected void grdmissedapp_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "Message")
            {
                GridViewRow row = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
                HiddenField hdnEmail = (HiddenField)row.Cells[2].FindControl("hdnEmail");
                string email = e.CommandArgument.ToString();
                if (!string.IsNullOrEmpty(email))
                {
                    Outlook.Application oApp = new Outlook.Application();
                    Outlook._MailItem oMailItem = (Outlook._MailItem)oApp.CreateItem(Outlook.OlItemType.olMailItem);
                   oMailItem.To = email;
                    // body, bcc etc...
                    oMailItem.Display(true);
                }
            }
            if (e.CommandName == "Call")
            {
                GridViewRow row = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
                Label lblcall = (Label)row.Cells[1].FindControl("lblcall");
                ImageButton btncall = (ImageButton)row.Cells[1].FindControl("btncall");

                if (lblcall != null)
                {
                    lblcall.Visible = true;
                    lblcall.Text = e.CommandArgument.ToString();
                    btncall.Visible = false;
                }
            }
        }

on calling above method locally it works fine but when i upload it on server it not working error shows

"Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: That assembly does not allow partially trusted callers."

this error also occur locally but works fine