If you typed "you're" and it was marked wrong, report it. "You're" and "You are" have the same meaning in English. But if you accidentally typed "your" or "you'r" then that is an error.
If you typed "you're" and it was marked wrong, report it. "You're" and "You are" have the same meaning in English. But if you accidentally typed "your" or "you'r" then that is an error.