Connection between MySQL and FireDAC closes the application when it is activated

I developed an application that uses FireDAC to connect to MySQL. But when I try to open it in a station, when the Connected := True is set, the application is closed, without returning any Exception. I wrapped the code in a try...except , but it still does not show any error messages. Here is the code I use for the connection

procedure TfrmServidor.confConnection;
begin
  with conMySQL do begin
    DriverName := LeXML.Strings[5];
    Params.Add('Server=' + LeXML.Strings[3]);
    Params.Add('Port=' + LeXML.Strings[4]);
    Params.Add('Database=' + LeXML.Strings[0]);
    Params.Add('User_Name=' + LeXML.Strings[1]);
    Params.Add('Password=' + LeXML.Strings[2]);
    ShowMessage(Params.Text);
  end;

  try
     conMySQL.Connected := True;
  except
     on e : Exception do
       ShowMessage(e.Message);
  end;
end;

Where LeXML is a function that reads an XML file with the connection properties and returns the values in a TStringList. what did I do wrong? The ShowMessage with Params.Text returns the following:

[Window Title]
Servidor

[Content]
DriverID=MySQL
Server=10.1.1.16
Port=3306
Database=treinamentos
User_Name=treinamentos
Password=masterkey


[OK]

Can anyone help me?