Incorrect results of the task

I would like to give some feedback about the task: Acceptable Password II

From: https://py.checkio.org/mission/acceptable-password-ii/solve/

HTTP_USER_AGENT:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36

My code is correct and returns True, but when I check it in your window it shows False. What is the point? I think something wrong with this task.

Here is my code:

def isacceptablepassword(password: str) -> bool: return len(password) > 6 and password.isalnum() and password.isalpha() == False

print(isacceptablepassword('muchlonger5'))