Hi everyone!
Ran into the same issue today running Magic Mirror v2.26.0 on a Pi4 64bit OS when trying to use Snowboy. Switching to Pocupine seems to have worked for me as well.
Incase anyone else tries to make the switch, I had to put my .ppn
custom model file in the root folder of EXT-Detector
and not the components
folder as the wiki suggests.
Thank you so much for all the amazing plugins!