This is a fix for simplefog to make it work with Foundry v11 again.
Beware that this downloadable version will only be available until the fix has officially been merged back to the official repo.
PR: League-of-Foundry-Developers#110
Installation:
- Uninstall the official simplefog version via Add-On Manager
- Download the simplefog.zip and unpack it into your FoundryVTT/Data/modules folder