Thanks for your help,
root 469 0.0 0.0 12780 924 pts/0 S+ 11:38 0:00 grep yunohost
avahi 652 0.0 0.0 38704 2280 ? Ss Apr13 0:00 avahi-daemon: running [yunohost.local]
root 677 3.4 2.5 548520 103852 ? Ssl Apr13 90:17 /usr/bin/python /usr/bin/yunohost-api
webadmin is back, but I can’t access to my backup area. Nor in webadmin or in shellinabox.