Hello,
after a change of isp my ip wan change. It seem iām in the case so i apply the solution of that topic :
https://forum.yunohost.org/t/plus-dacces-depuis-adresse-en-xxx-ynh-fr-apres-changement-dip/14295/19
i got a 
sudo yunohost dyndns subscribe -d edit.ynh.fr
Erreur : Le domaine edit.ynh.fr est indisponible.
So please can you remove edit.ynh.fr
thanks