Bug while doing a lesson

[Jandreslami]

I can't seem to get past this , the screen has freezed, and it doesnt let me even write in the text box. It's not the first time it happens to me, and it has ruined a lesson while i was in the middle of it :(

Imgur

http://imgur.com/Ld1b5AG

Can someone tell me how to paste images here?

[wazzie]

to post images
![image](www.website.com)

[ArdeJohnson]

Test