It helps to know what OS version you are running and on what model Mac. What are you doing when this error pops up? Have you tried restarting the computer?
Apple support had something similar to your error and suggests resetting the System Management Controller (which I understand is in Sierra) https://support.apple.com/en-in/HT201295
That error is a Dictation problem, and there's multiple reports when you search for that error. Could be an old plugin that you may have installed before upgrading your system, and is not quite compatible with your system - more info here: https://discussions.apple.com/thread/8088067
Or, you might try toggling Dictation in your system (If you have it turned on, turn Dictation off, restart your Mac, then turn Dictation on again (or Off, if Dictation was not previously On.)