Mapping categories and brands

Screenshot from 2018-02-15 16-22-23

I can't send products to the marketplace. I make all the configs and a reindex to all the products, i save again the collection, check the status of the seller, check the logistics and inventory but nothing.

in the mapping section, all mapping tables are empty for this seller, and i can't map the brands or categories:

Screenshot from 2018-02-15 16-32-04

What i have to do? what i forget to make it work?

If isn't the mapping tables, what else?

this take me 2 days, so it can't be cache...