Keep getting message while trying to empty trash

Hi,

Have you tried restarting the Mac and then emptying the trash?

If that doesn't do it, try booting into Safe Mode: How to use safe mode on your Mac - Apple Support and see if you can empty the trash there.

This article suggests the the VoiceTrigger is part of Siri aspect of the Operating System and as such can not be deleted https://apple.stackexchange.com/questions/415593/what-is-library-voicetrigger-sat-part-of-siri