Loading collection data...
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.
It is a kata issue because it really doesn't make any sense.
Not a Kata issue
I know it has been a while, but I had the same problem....
For me, stop using the min and max function got it working.
Yeah, I totally refactored this just after I submitted ;)
You will have to post your solution(mark it as spoiler) as the error itself doesn't tell much except that you are using a number as a function.