Configuring SFTP server error

Please help me in this. I followed the instruction in Installing SFTP server(https://winscp.net/eng/docs/guide_windows_openssh_server) but I am getting the error below.

C:\Program Files\OpenSSH\FixHostFilePermissions.ps1 : Cannot convert 'System.String' to the type
'System.Management.Automation.SwitchParameter' required by parameter 'Confirm'.
+ CategoryInfo : InvalidArgument: (:) [FixHostFilePermissions.ps1], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : CannotConvertArgument,FixHostFilePermissions.ps1

Please report your problem to the Win32-OpenSSH team:
https://github.com/PowerShell/Win32-OpenSSH/issues