"The operation is not allowed in the current state of the host"

You receive this Error below withing VCenter when trying to either create a snapshot, run a backup or start a VM, etc.
"The operation is not allowed in the current state of the host"

Resolution in the order that I used to resolve it
Disabled HA and DRS- same issue
Restart VCenter - same issue
Disconnect Hosts and then ReConnect - same issue
Disable Auto Start and Shutdown of Hosts- same issue
Login to the hosts with a Putty SSH connection
Type in Services.sh restart- This resolved the issue
I think that a restart of the hosts would have resolved the issue as well

I then Enabled the Auto Start and Shutdown of Hosts. I also verified that I could take another VM Snapshot, start a VM, etc..
I also ran a successful VM backup which also takes a snapshot of the VM before the backup