FP4 restarts regulary after update to 4.1.1

After updateing to 4.1.1. on my FP4 It regulary restarts itself. Sometimes after a few hours somtiems only after a few minutes.

The complete verion is 4.1.1-a14-20260719651758-official-FP4

Besides that it is realy anoying, it also drins the battery fast…

Is there anything I can do to get more infos, like activating a log so I see why it restarts?

This is the documentation page for log collection