fix stats freshness by unfreezing date range
Created by: adipasquale
https://trello.com/c/oL31Kv20/983-stats-r%C3%A9parer-la-fra%C3%AEcheur-des-statistiques
Created by: adipasquale
https://trello.com/c/oL31Kv20/983-stats-r%C3%A9parer-la-fra%C3%AEcheur-des-statistiques