paperwork-shell error during OCR of seamingly correct import

I'm running this command to import documents into paperwork: paperwork-shell import scan.pdf

The error message is attached: paperwork-shell-error.log

Importing the document using the paperwork gui works.

Which version of Paperwork are you running exactly and how did you install it ?

I'm using Arch Linux and the aur package for paperwork. https://aur.archlinux.org/packages/paperwork/

The current version is 1.2.4