Hi, I’m using Java script code. I really don’t know what I’ve done wrong here, any insights?
Looks like your previous run had a typo and you fixed it; try pressing the “Run” button again.
I did, but this same error message kept appearing. Maybe it’s some sort of bug?
Possibly. If I recall correctly, I may have experienced these persistent errors a few times, but it was really hard to trigger. Can you reload the page to see if the error goes away?
I had tried it before by just pressing F5 on my keyboard, but this time I clicked on the “Reload” button and it worked! Thanks =D
No problem! 
Just note that the “Reload” button in the game interface erases your code and resets it to the default starting code.