Masonry Gallery doesn´t show up on desktop anymore

Hi everyone,

we have an issue with the masonry gallery on this website: https://claudiabessler.de/cbs-choice/
I cannot say the exact time point, when the issue came up, but it seems, someone made an update (either of wordpress or the enfold theme and child theme) and the error occured: The masonry gallery doesn´t show up on desktop anymore. Mobile everything is fine (iPhone, Galaxy etc.).

This is the shortcode that was used and that worked fine before:
[av_masonry_gallery ids='6089,6098,6097,6091,6096,6090,6088,6087' items='24' columns='flexible' paginate='pagination' size='flex' orientation='' gap='large' overlay_fx='active' container_links='active' id='' caption_elements='title excerpt' caption_styling='' caption_display='always' color='' custom_bg='' av-medium-columns='' av-small-columns='' av-mini-columns='' av_uid='av-7lrug']

It´s WordPress 5.7 (with version 5.6.2 the issue was there, too) and php version 7.3.27 (with older or newer versions the issue still exists).

We don´t know how to solve this and hope, you can help us. If there are further infos needed, I will provide.

Kind regards and thank you
Janni