New Microsoft Planner Premium recover deletet bucket?

Hi! We got O365 in a business enviroment, and implemented Planner Premium now in 2025.

This morning some kind of a bug happened and a user got several error messages. unfortunatly he didnt take a screenshot.

The result was that a bucket, with its tasks, got deleted. ctrl+z didnt work.

Is there any way of restoring it nowadays?

Surely in a business enviroment setup there is some kind of version history?

brgds, Henrik