A call to SSPI failed, see inner exception.

void recordbind()
{

if (Session["adminhome"] != null)
{

lblSales.Text = Session["adminhome"].ToString();

}

SqlConnection cnn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
cnn.Open();
SqlCommand comm = new SqlCommand();
string quiry = "BEGIN TRY " +
"BEGIN TRANSACTION " +
"INSERT INTO [dsr_data]([session_name],[currentdate],[client_type],[date_time],[tme],[area],[company_name],[client_name],[mobile],[email],[address_name],[landmark],[curr_presence_appoint],[status_type],[result],[comment])";

if (ddlctype.Text != "Select")
{
quiry += " select '" + lblSales.Text + "', '" + lbldate.Text + "', '" + ddlctype.Text.Trim() + "','" + txtDate.Text.Trim() + "','" + ddltme.Text.Trim() + "','" + txtarea.Text.Trim() + "','" + txtcname.Text.Trim() + "','" + txtclientname.Text.Trim() + "', '" + txtmobile.Text.Trim() + "','" + txtemail.Text.Trim() + "','" + txtaddress.Text.Trim() + "','" + txtlandmark.Text.Trim() + "','" + txtcurr.Text.Trim() + "','" + ddlstatus.Text.Trim() + "','" + ddlresult.Text.Trim() + "','" + txtcomment.Text.Trim() + "'";
}

if (DropDownList1.Text != "Select")


quiry += " COMMIT TRANSACTION " +
"END TRY " +
"BEGIN CATCH " +
"ROLLBACK TRANSACTION " +
" END CATCH";


comm.Connection = cnn;
comm.CommandType = CommandType.Text;
comm.CommandText = quiry;

try
{

comm.ExecuteNonQuery();
ScriptManager.RegisterStartupScript(this, GetType(), "Success", "alert('Information Save Successfully.');", true);

}

catch (Exception ex)
{
Response.Write(ex.Message);
}

}