My modded minecraft world don't go past 100% on the loading screen. My backup still work, but i've made a lot of progress from the point i was that save. i have already checked online and did some suggestions i found, but nothing worked.
Here is my latest log + i don´t have crash reports:
Create a new class that extends "Block" class and you need json for it in resources/assets/modid/blockstates directory and resources/assets/modid/models. You can generate json for it using a tool like misodes model generator. Here, atleast, are blocks explained at forge docs.
Don't forge to look at vanilla code, like Magma Block is a good reference if you're trying a "green fire block".
Modid should be replaced with your actual forge mod namespace!