Sync nextcloud calendar and contacts failed


I’ve been using Nextcloud for 1 year and sync worked well until recently. I can’t sync calendars and contacts anymore, and it might be since the last beta update (not sure about that at all)
Here is the nginx log I have

And here is the version of ynh i am running

yunohost: 2.6.3
yunohost-admin: 2.6.0
moulinette: 2.6.0
ssowat: 2.6.8

Nextcloud version

The file-sync works like a charm.
Thanks for the help

The issue was on debian on my PC, not because of anything linked to the server. a simple reboot of the PC was enough.