Hey @rchen3592 from a cursory check it looks like that’s a pretty old addon and the source repo isn’t even available so it’s hard to tell what the addon code looks like. NPM said the publish date was 2 years ago, which means it’s going to be pretty outdated ember-wise, and if it uses bower that could also be problematic (Ember is working towards dumping any dependence on bower so modern addons should use only npm). If the source was available you could look into it and even create your own fork, but it’s not so my recommendation would unfortunately be to look for a more modern maintained addon. That’s one thing you have to be careful of when choosing ember addons. Ember Observer can be a huge help because it scores addons based on a number of factors, so if you only use addons with “decent” scores you’ll usually be pretty safe in terms of upgrades or deprecations.
Anyway, sorry that’s probably not the news you wanted but I’m not sure what else to suggest with this addon specifically if the code isn’t even available.