Stuck on Building Terrain

I try to join the world and it’s too long on building terrain, So I try many times but it’s still stuck there. It’s happen when I update to 1.16.221 when I opened Minecraft, It’s crash. I try to join another world and it’s still can join world. World that I have problem is 88.1 MB. I googled for 1 hour but I still didn’t have an answer so I dicidedgo to Minecraft.net and go to this website.