Cannot connect to calendar, contacts and notes

Hi everyone,

I’m a new nextcloud user. I set my cloud hosted in a web server hosted by OVH.
My installation is now runninf and i can sync photos, document et music with android app and web navigator.

Unfortunately, when it comes ro sync my contacts, calendar or notes there is an issue when i complete login information. When a try to connect davdrois from nextcloud app i have the error in the picture… When i try to sync my notes with official nextcloud note, same thing, application doesn t recognize my servers information.
Does somenone already meet thus issue

Could be that this apps are using the service discovery to set up the account: