When clicking a picture console says 'b is undefined' or 'cannot read property className of undefined'

[ikeThun]

So whenever i try to click the image that would open the gallery i get this error, now the code is inherited and i can provide with any information, but i have to get it to work somehow.

Any help is greatly appreciated, whether it be small or big, looking forward to it.

Thanks!

[andi34]

You might want to take a look at the website source: https://github.com/dimsemenov/PhotoSwipe/tree/master/website

(https://photoswipe.com/)