B'c vCenter itsself has nothing to do with HA.
No, without vCenter you do not have HA.
However, I was more after getting your display right. As far as I understood, your guests went down, crashed, because you do not use HA but vCenter shows that they are running so you can't start them again. That's why I asked if you have restarted vCenter already. To get the status corrected.
AWo
VCP 3 & 4
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