Problem with the timestamp api project

Helo campers !
I’m trying to get pass the timestamp api project but i get stuck on the two last tests:

It should handle an empty date parameter, and return the current time in unix format
It should handle an empty date parameter, and return the current time in UTC format

I can’t figure why so i look the official test repo and still can’t figure why

there is my repo project:
my code
my app

If someone now why i can’t pass this test or have a hint for me i would be so happy!!

Ps: sorry for my english not my natural language !!
Have a nice day campers!!