I need to unlock an activity

I need to unlock an activity

от Billy Zwiener -
Количество ответов: 1

I didn't know I had activities locked but I apparently do as I get this error when I submit a quiz:

"This activity is locked in the gradebook. Changes that are made to grades in this activity will not be copied to the gradebook until it is unlocked."

So my question how do I unlock these activities so I don't get this error? Thanks!