I changed the all port in nginx config files.
I accidentally destroyed my certificate and made a self-signed one.
I’ll go ask Yunohost why I still can’t login into https://duniter-folatt.nohost.me:44344/ or https://duniter-folatt.nohost.me:44344/webui.
admin@Xroklaus:/etc/nginx $ sudo grep -ir "443" .
./sites-available/default: listen 44344 ssl default_server;
./sites-available/default: listen [::]:44344 ssl default_server;
./conf.d/duniter-folatt.nohost.me.conf: listen 44344 ssl;
./conf.d/duniter-folatt.nohost.me.conf: listen [::]:44344 ssl;
./conf.d/yunohost_admin.conf: listen 44344 ssl default_server;
./conf.d/yunohost_admin.conf: listen [::]:44344 ssl default_server;