How to get this to work on NPM?

[Seeingred0]

I'm setting up on JS file as the following, however I'm getting an issue - Uncaught TypeError: Cannot read property 'greensock' of undefined

Here's my JS code:

import { hoverEffect } from 'hover-effect';


new hoverEffect({

parent: document.querySelector('.img'),
intensity: 0.3,
image1: './1.jpg',
image2: './2.jpg',
displacementImage: './4.png'

})