Error which is preventing submission

[TonyShalom]

On "The shortest person in the room" task, the shortest method has the code "print("Shortest:", room.shortest())" with the output "Shortest: Nina". It returns a name, so I used the code "return self.persons[0].name" and it produced an error saying I should return a person. I believe this is wrong, but instead, I used the code return "self.persons[0]" to return a person. I submitted the entire code and it worked, but there was an error when submitting the code, and the system crashed, so now everything I submitted shows red and indicates that the points are loading.

Your course is really great. I'm just going to learn in different ways until it's fixed.

[TonyShalom]

Like avalcourt mentioned, it says it's a connection error:
"Connection Error — Failed to submit — Connection Error: Failed to submit"