Attribut not value in the product

When you select an attribute, why doesn't the value appear so you can choose which values should belong to the product?

This was reported previously as being a bug. Grab the latest edit_product.inc.php.

how i get this edit_product.inc.php?

Here it is directly from Github:
https://raw.githubusercontent.com/litecart/litecart/dev/public_html/admin/catalog.app/edit_product.inc.php

Thanks

i try to insert this but can not insert attrubut on a product

Is the problem reproducable in the demo?
https://demo.litecart.net/admin/

Working in demo, that you have 2.5.3 i have 2.5.2

Yes but the file above that I told you to grab is 2.5.3.