Nextcloud not reachable : timeout

What type of hardware are you using: Old laptop or computer
What YunoHost version are you running: 11.3
What app is this about: Nextcloud

Describe your issue

Hello,
I noticed I had errors on my NextCloud mobile app, photos could not be sent automatically to my server so I tried to connect throuht the web interface and got a timeout error.

yunohost: 
  repo: stable
  version: 11.3.0.2
yunohost-admin: 
  repo: stable
  version: 11.3.0
moulinette: 
  repo: stable
  version: 11.3.0
ssowat: 
  repo: stable
  version: 11.3.0
yunohost app list
 4: 
    description: Online storage, file sharing platform and various other applications
    domain_path: cloud.oslight.ovh/nextcloud
    id: nextcloud
    name: Nextcloud
    version: 29.0.10~ynh1

Share relevant logs or error messages

I thought maybe my ssd was full, but no… it seem fine

df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           787M   14M  773M   2% /run
/dev/sda2       915G  469G  400G  55% /
tmpfs           3.9G   80K  3.9G   1% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
/dev/sda1       511M  5.9M  506M   2% /boot/efi
tmpfs           787M     0  787M   0% /run/user/42994

I tried to look at nextcloud logs but there is little :

tail -n 50 nextcloud.log 
{"reqId":"hFaTiuc7BFc5NUutOMzV","level":2,"time":"2024-12-20T18:25:05+00:00","remoteAddr":"","user":"--","app":"dav","method":"","url":"--","message":"Subscription 2 could not be parsed","userAgent":"--","version":"29.0.10.1","exception":{"Exception":"Sabre\\VObject\\ParseException","Message":"This parser only supports VCARD and VCALENDAR files","Code":0,"Trace":[{"file":"/var/www/nextcloud/3rdparty/sabre/vobject/lib/Parser/MimeDir.php","line":90,"function":"parseDocument","class":"Sabre\\VObject\\Parser\\MimeDir","type":"->"},{"file":"/var/www/nextcloud/3rdparty/sabre/vobject/lib/Reader.php","line":47,"function":"parse","class":"Sabre\\VObject\\Parser\\MimeDir","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php","line":231,"function":"read","class":"Sabre\\VObject\\Reader","type":"::"},{"file":"/var/www/nextcloud/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php","line":82,"function":"queryWebcalFeed","class":"OCA\\DAV\\CalDAV\\WebcalCaching\\RefreshWebcalService","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/BackgroundJob/RefreshWebcalJob.php","line":94,"function":"refreshSubscription","class":"OCA\\DAV\\CalDAV\\WebcalCaching\\RefreshWebcalService","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":80,"function":"run","class":"OCA\\DAV\\BackgroundJob\\RefreshWebcalJob","type":"->"},{"file":"/var/www/nextcloud/apps/dav/lib/BackgroundJob/RefreshWebcalJob.php","line":87,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":65,"function":"start","class":"OCA\\DAV\\BackgroundJob\\RefreshWebcalJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":177,"function":"execute","class":"OCP\\BackgroundJob\\Job","type":"->"}],"File":"/var/www/nextcloud/3rdparty/sabre/vobject/lib/Parser/MimeDir.php","Line":163,"message":"Subscription 2 could not be parsed","exception":{},"CustomMessage":"Subscription 2 could not be parsed"}}

What else can I look into ?