Not sure why but the game crashes right after I try to load or create a world when the two mods (Sandwichable and VillagerFix) are loaded.

Here is the crash-report : crash-2020-09-28_21.37.31-client.txt

I don't think it's because of my mod per se, I believe it's an issue with Cloth Dynamic Registries API (My mod has it bundled in). It likely won't throw the error if you just load Cloth and VillagerFix but from your log I think it's Cloth's issue so please also report it there.
Also with a mod named "SomethingFix" It probably will cause incompatibility.