Error in Master Detail (in mobile)

Hello…
In a form app, i have a master-detail section.
In desktop work fine…
But if open the form from a mobile device, in the master detail show “Not Found”.
Analizing the code, i found what reference a php file, finished in mbo, was not generated!

How i can fix???
Thanks!

I copy the original procedure “Detalle_CarroCompras”, duplicate to “Detalle_CarroCompras_mob”, to work… but is a bad idea.