title: VirtualBox error Failed to open session of virtual machine macOS (VERR_PDM_TOO_MANY_DEVICES_INSTANCES)
body: <p>Too many instances of a device. (VERR_PDM_TOO_MANY_DEVICE_INSTANCES).</p>
  <p>Result Code:
  E_FAIL (0x80004005)
  Component:
  ConsoleWrap
  Interface:
  IConsole {872da645-4a9b-1727-bee2-5585105b9eed}</p>