Powershell command doesn't work

Powershell help needed.
Wish to harden all my vm's on Esxi host. However there is one setting I need help with.
To remove all PCI devices on the vm's.
The vm advance setting would be some thing like ' passthru*present = false, but it doesn't like the wildcard.
There is a get-passthrough command, I tried :

Connect-VIServer -Server x.x.x.x -Protocol https -User root -Password xxxxxxxxx
$vms = Get-VM | where {$_.PowerState -eq "PoweredOff"}
foreach ($vm in $vms)
{Get-passthroughdevice -vm $vm | Remove-PassthroughDevice}

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But it returned error:

Get-passthroughdevice : 04/03/2019 11:23:28	Get-PassthroughDevice		Unable to cast object of type 'VMware.Vim.VirtualPCIPassthroughVmiopBackingInfo' to type 
'VMware.Vim.VirtualPCIPassthroughDeviceBackingInfo'.	
At line:5 char:2
+ {Get-passthroughdevice -vm $vm | Remove-PassthroughDevice}
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Get-PassthroughDevice], VimException
    + FullyQualifiedErrorId : Core_BaseCmdlet_UnknownError,VMware.VimAutomation.ViCore.Cmdlets.Commands.VirtualDevice.GetPassthroughDevice

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