Trying to run Arducam using Libcamera with Octolapse

Trying to run Arducam timelapse by taking full res screenshots using libcamera-still. Created a script that seems to run fine when I execute it. But when I add it to Octolapse's external script section and run a test, it seems to error out. I'm assuming it's a permission issue?
plugin_octolapse (3).log (21.1 KB)