My child theme isn't activated

1. Activate parent theme

https://www.awesomescreenshot.com/image/3169426/7186c4fd2a8d65723eff715fc3927fb4

2. Install Child theme, activate it, remove key and save it

https://www.awesomescreenshot.com/image/3169431/cee2085ab0aa1d08223078f02ddc9b04