Time Machine Backup w/ Apple Time Capsule on macOS Sequoia 15.1

Hi All,

I've done a lotta backups over the past coupla years but it seems something isn't right.

I've been using this Time Capsule for more than 5 years now and everything went smoothly before I upgraded to the latest main version. It feels like it always stops at 50-60%. (s. attached screenies)

I'm always receivin the following message:

Time Machine couldn't complete the backup to "Data"

The network disk disconnected from your Mac while backing up.

Make sure the computer and the backup disk are on the same network, and that the backup disk is turned on.

Can somebody support and advise?

I tried anything but it hasn't been successful yet. 😩

Thanx a lot to all of y'all. 🖤