Given a positive integer n, return first n dgits of Thue-Morse sequence, as a string (see examples).

I think this explains it well :)

Only way I was able to change the avatar was by connecting my GitHu account to my CW account.

You just think of a name and write it as your clan :)

1. I agree, but it's beginner kata. Could it be more challenging? Yes. Is it too easy to even 8kyu? Perhaps, everything is in the eyes of beholder :)
2. If that is changed now, it would break all solutions so far so I left it as it it.
3. Added more test cases.

Added more tests.
Since this is a simple kata, I have left it so that only strings are passed.

Added.

Added random test.

Not an issue. Plus, it seems you solved it in the end.

If the value entered is a string it should return "Error".

It's pretty clear from this.
It passes only numbers and string, which is also shown in test cases.

Seems to be approved. :)

Your squeakyClean function should accept an input array of values and return a new array with all empty strings, 0, null and undefined removed.

It clearly states what to return.

Done.