My scheduled backups are failing all of a sudden

SYSTEM INFORMATION
OS type and version Ubuntu Linux 20.04.5
Webmin version 2.001
Virtualmin version 7.3-1 Pro
Related packages Scheduled Backups

Hi,

My scheduled backups are failing with no error output. It was working fine but stopped and I don’t know why since there is no log I can see. Please see the screenshot below and guide me to produce error logs

Thanks

Kernel and CPU
Linux 5.15.0-57-generic on x86_64
Processor information
11th Gen Intel(R) Core™ i5-11400 @ 2.60GHz, 12 cores
Real memory
4.57 GiB used / 6.61 GiB cached / 15.39 GiB total
Virtual memory
0 bytes used / 1.99 GiB total
Local disk space
1.62 TiB used / 4.24 TiB free / 5.87 TiB total
Package updates
All installed packages are up to date