Yes, I realized my mistake, thank you very much. It was necessary to learn more about the peculiarities of the language. 100 iterations, it's so joke, forgot to rewrite)

What language, what error? Impossible to help you with so little information.
There is no error, your code mutates the original list. Read about it.
Some solutions present in Solutions section aren't invalidated (don't know why) but were valid when input mutation wasn't tested.

this kata has a error and I saw solutions, I went back to try agin error

Read about arrays and mutation, you are indeed mutating it. You're not creating a copy, only another reference to the same array.
Try this kata
And why did you set the loop limit to 100 iterations?