Moviestim2/VLC issue

I am using MovieStim2 to present videos. My code works on a computer with mac OS High Sierra and 64 bit VLC (same PsychoPy version).

The issue is when I’m using OS X El Capitan, Psychopy 1.83.04, and 32 bit VLC. I get the error “NameError: global name ‘vlc’ is not defined” even though VLC is installed and has been opened. I’d appreciate any insight