I'll just leave it here for any poor soul who will google this error and land to this page.
Details: code NS_ERROR_FAILURE (0x80004005), component SessionMachine, interface ISession
As of VirtualBox 7.0.12.
This just means your have no space on HDD/SDD. If anyone in VirtualBox team reads this, error message could be more meaningful.
And happy new year everyone!
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