Unable to delete ME4012 disk group

I am trying to delete a disk group on a ME4012. I don't care about any data.

The command I am using is remove disk-group dgA02.

I get these error messages:
Error: There is insufficient space in the remaining disk groups to accept the data orphaned by at least one disk group in this request. - Failed to remove the virtual disk groups. (00c0ff52d2f10000c18d6f6801000000)
Error: There is insufficient space in the remaining disk groups to accept the data orphaned by at least one disk group in this request. (2025-07-19 06:57:43)

How can I force the deletion of the disk group?