You should retry with QGO and wait for the end of the process, meaning don't close QGO until the process is terminated. You should see a progress bar.
I just did a video when I successfully backed up Demeo for example : https://drive.google.com/file/d/1gzuc1_xEj28CBWhVOGYeIEl-3bjL7v5q/view?usp=shari...