You encountered a Purple Screen Of Death: PSOD
VMware vSphere 8.0.3
Identified bug
There is no resolution at this time.
The Engineering Team is aware of this and working towards resolution.
Workaround :
At this moment you are fully reserving the memory, which exposes to the risk of this bug.
To mitigate this issue please do not reserve entire memory. At least leave leave 15% (conservative in this case) of memory reservation.