Uploaded assignment 0 points

Hi all!
I read some topics about my question. However, I still don’t get what the problem is.
I finished the first assignment in Uipath Advanced Course (Calculate Client Security Hash). It runs properly on my PC, there are no spaces, between CliendID-Name-Country, and still - result is 0.
Would you please suggest what may the problems be?
Thank you

Also, after two completed runs in Studio, in ACME > Check Assignment Result, status is failed…