Hi i downloaded your plugin and followed the instructions on how to install it but it never works when i do /tc check MY_world_name it says it
Can not load ocean biome
Can not load forest biome
and so on...
it also does this when i do /mv create world_name normal -g Terrain Control
When i going into these worlds there isn't any change. I really want this plugins on my server can you help me?

The code where this error occured doesn't exist anymore, so I'm closing this. However, it is possible that the new code also has this bug. If that is the case, please leave a message here and I'll reopen this.

That error is normal when you are creating a world - it just means that TC hasn't found the config files, because there are none 😛

However, if TC gives that error every time you start the server, then there is a problem. Either the config files cannot be saved (check plugins/TerrainControl/worlds) or they cannot be loaded.

ok but when i do /tc spawn it says: "A internal error occurred

Show this error from server log please.