Where I can report a bug?

Question

I found a bug but can’t find where I can report it.
The bug is in a JavaScript lessons, when I want to open level “Form validation” it’s crash the application, so I can’t finish the learning!!! It’s last lesson before last Quiz!!!
Using Iphone 7plus.

Answer 1

It's working fine in Android.. try clearing data.. and if not resolved you can mail them at [e-mail]

Answer 2

Thanks, I’ll send them an email