Crashing when creating new world or entering world

[Stayer1231]

Hi, thanks for your mod. I know this mod is really great but I have an issue with your mod. I'm currently using Minecraft 1.16.5 and the latest version of your mod-BetterFoliage-2.7.1-Forge-1.16.5. The problem is, whenever I try to enter an existing world the game crash. I've even tried to create a new world, it's still not working. But when I use the BetterFoliage-2.6.5 version, it works but grass blocks just have short grass upon them. Please help me. Thank you very much

Edit: Okay, I have just read your mod more carefully and now it's all good. Thank you.