If ChartJS animation is disabled, this plugin crashes my web app

My web app (Nuxt) crashes when using this plugin (v2.0.0) and disabling ChartJS (v4.4.7) animations.

**FAILS (A) - my nuxt web app crashes with a 500 error:**

(ChartJS instance)
```
options: {
// ...
plugins: {
deferred: {
xOffset: 150,
yOffset: '50%',
delay: 500
}
},
// ...
animation: false, // Animations are disabled via this ChartJS option
// ...
}
```

**WORKS (B) - The app works like normal if not disabled animation**

```
options: {
// ...
plugins: {
deferred: {
xOffset: 150,
yOffset: '50%',
delay: 500
}
},
// ...
}
```

**WORKS (C) - The app works like normal if I exclude this plugin and disable animations**

```
options: {
// ...
animation: false, // ChartJS option that toggles animations
// ...
}
```

Maybe I'm overlooking something but it seems like this plugin doesn't first detect whether ChartJS animations are disabled, before running more logic (case A).