Animation Editor Crashing. Why?

I've been trying to edit my animations, and every time I press play, Roblox Studio crashes. The Animation Editor I use is this, https://www.roblox.com/catalog/543295026/Animation-Editor-2016 Is it just my laptop, or are other people having this problem too? Are there any Animation Editors that are good to use because, I'm getting tired of this. :/

The editor you're using isn't the official editor.

Roblox has their own built-in editor that works perfectly.

Please uninstall yours since we don't know much about it. Judging by the fact that the owner of it is banned, it could very well be scam and a hack to gain your information.