Reproduce an error binding to a calendar public folder

PublicFolderCalendarBind.ps1

#####
# Change as needed
$folderPath = "\Bill\Some Calendar"
$user = "bill@contoso.com"
#
#####

Import-Module -Name "C:\Program Files\Microsoft\Exchange\Web Services\2.2\Microsoft.Exchange.WebServices.dll"
$password = $host.ui.PromptForCredential("Credentials", "Please enter your password to authenticate to EWS.", $user, "").GetNetworkCredential().Password
$exchService = new-object Microsoft.Exchange.WebServices.Data.ExchangeService([Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2016)
$exchService.Credentials = new-object System.Net.NetworkCredential($user, $password, "")
$exchService.AutoDiscoverUrl($user, {$true})
$pfsRoot = [Microsoft.Exchange.WebServices.Data.Folder]::Bind($exchService, [Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::PublicFoldersRoot) 
$tinyView = new-object Microsoft.Exchange.WebServices.Data.FolderView(2) 
$displayNameProperty = [Microsoft.Exchange.WebServices.Data.FolderSchema]::DisplayName

# Find the folder
$tinyView = new-object Microsoft.Exchange.WebServices.Data.FolderView(2) 
$displayNameProperty = [Microsoft.Exchange.WebServices.Data.FolderSchema]::DisplayName
$folderPathSplits = $FolderPath.Split(@('\')) 
$folder = $pfsRoot # Starting from the root
for ($x = 1; $x -lt $folderPathSplits.Length;$x++) 
{ 
    $filter = new-object Microsoft.Exchange.WebServices.Data.SearchFilter+IsEqualTo($displayNameProperty, $folderPathSplits[$x]) 
    $results = $folder.FindFolders($filter, $tinyView) 
    if ($results.TotalCount -gt 1) 
    { 
            ("Ambiguous name: " + $folderPathSplits[$x]) 
            return 
    } 
    elseif ($results.TotalCount -lt 1) 
    { 
            ("Folder not found: " + $folderPathSplits[$x]) 
            return 
    } 
    $folder = $results.Folders[0] 
}

# At this point, the result of the folder we specified is in $folder
# Now try to bind to that Id
[Microsoft.Exchange.WebServices.Data.Folder]::Bind($exchService, $folder.Id)