JavaScript not working after parcel Build but everything else does

My website deployment :
When I build locally and develop locally there is not a problem with loading JS.However when i try to deploy via netlify using the following build command:
parcel build index.html --dist-dir ./dist
my website won’t interact as any of my javascript is not working properly.

@Rosti The site you’ve linked displays a JavaScript error in the developer console:



Checking the page source, there doesn’t appear to be an element with an id of icon-open