I have attempted to add FARL to a modpack to play the game with, and was greeted with this error on startup https://i.imgur.com/rzpL6WR.png
I tried removing various mods, starting the game with only FARL in the mod folder, and redownloading the .zip. None of these have changed the startup error, and friends who I gave the .zip to also had the same errors. I have not seen any similar reports, and I don't have the vehicle equipement mod in the pack, and especially not when I ran the game with only FARL.
Update: I'm a moron and had the wrong Factorio version installed.