I think you answered your own question:

"i linked the two table using default jointure on "Day" Column"

If the tables are only linked by day and not linked by country, then the correct total for 14/04 is 12. If you want the countries to also be linked, you should link that field as well.

when i linked the two fild Day and country i got no result

Nothing is the correct result for 14/04 when picking Spain, as there are no lines associated with that set of values in the first table?

normally it must return column Void of Futs from first table

I'm sorry, I don't understand what "Column void" means, or why you'd expect to get any sort of result when you filter for a combination which doesn't exist in the table...

this is the real result , i filter on Spain but it display Nbr de fus consommé of Maroc