I think Karl was asking if youâre running your own instance, or logging into a third-party service. Which apparently you are.
This forum is mostly for developers of Nextcloud, and for users that run their own instance of the software. Nextcloud (the organisation that runs this forum) provides the software, but has no influence or control over whoever runs the site âemma.cloud.tabdigital.euâ.
Honestly, it looks like tabdigital are terrible system administrators. Going by your description, Iâm guessing they host multiple instances of Nextcloud under multiple domains on one server. Their sysadmin managed to mess up their config, resulting in your desktop app syncing to âwrong.cloud.tabdigital.euâ instead of âemma.cloud.tabdigital.euâ.
I wish you luck, but thereâs very little anyone here can do. Only your service provider (emma.cloud.tabdigital.eu) can answer your questions or make you feel better about your lost privacy.