Error getting available space with cloning snapshot

[TwinDaddyKev]

Currently running 8.0.4 Release P1 x64 (11059)
6 2TB in a RAIDZ2

I have an issue with deleting a clone snapshot. I was testing cloning snapshot but now when I try to delete it, I get the following errors.


Does anyone know how I can fix this?

Thanks,

TDK