Backup Failes

My backup keeps failing

Ik comes a long way, but in the end it still gives a ‘failure’
This one finished: BMI-831a8Ap6-24280 (I’ve got the log)

But after that, I tried some more, now I get a ‘failure’ a lot quicker: BMI-wqxuBYkv-45861 (I’ve got the log, wich is shorter than the one above)

The page I need help with: [log in to see the link]