Https://www.codecademy.com/courses/learn-the-command-line/lessons/manipulation/exercises/cp-ii

I would like to report the issue about checkbox, (it does not respond at all)I stuck because of it, can’t finish the exercise in Command Line course:
https://www.codecademy.com/courses/learn-the-command-line/lessons/manipulation/exercises/cp-ii

Could someone help me to fix it somehow? I’ll sincerely appreciate that!