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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
IMO you did not understand the task's description.
You can read through this FAQ first, and if it does not help, then yes.
Not an issue, and without any information, nobody will be able to help you.