Starting and stopping broken

[YTCuber]

When pressing space, I get the following errors logged into the console:

ReferenceError: event is not defined script.js:167:1
spaceDown https://booligoosh.github.io/rubiks-time/script.js:167:1
onkeydown https://booligoosh.github.io/rubiks-time/:1:1

ReferenceError: event is not defined script.js:189:1
spaceUp https://booligoosh.github.io/rubiks-time/script.js:189:1
onkeyup https://booligoosh.github.io/rubiks-time/:1:1

This happens on Firefox 52.0 (64bit) with Ubuntu 16.10.

[Booligoosh]

Thanks for letting me know. I'll go and fix it and tell you once it's working.
It seems to be a problem with Firefox keydown compatibility so I'll find a better way of doing it.
In the meantime, try using it on Google Chrome.
Also thank you for checking out my site, and I really appreciate it.