I just bought Realms plus and I created my realm but it didn't even let me introduce a seed for the world, it just created it and that's it. Then I decided to create a world with the correct seed and then replace the realm world with this new world, however when I exported the world, it marked error and said that an error occurred and that's it, it didn't specify anything. So far I've tried about 10 times and it still won't let me replace the world.

Help pls :c