problem with url containing #

I am also using Table of Contents plugin. And when I try to enter an article like this: xyz.com/article#second-header pictures are not loading (just spinner is visible all the time).

Example: https://www.readyforboarding.pl/wskazowki-praktyczne/dominikana-punta-cana-co-robic-na-dominikanie-pogoda-i-inne.html#Inne-atrakcje

First image is loading, but this one higher or/and lower are not.

Can you help me?