@Juan-Jose85 You advertise for 7 guests, but your beds appear to be 2 single beds with one double that would accommodate only 6 guests, and only one bed for a couple to sleep together. It is also hard to tell from the pictures of the single beds that they have a trundle that can be pulled out for the second guest in that room. Take pictures with the trundle beds pulled out half-way from under the (top) bed so that people understand your offering.
You also have a picture of the dishes in the apartment -- but there are only 4 shown -- do you have enough dishes for a family of 6-7 to have two meals before having to wash everything? The dining area also appears to accommodate only 6 persons, with the placemats very close together and only one chair. Are there enough chairs for 6 people?
You need to go into your listing and populate the rooms information so that people know what to expect. Best wishes!