Accordions plugin has a random behaviour, sometimes appear, some times it does not

Hi guys, I hope you are doing well, My problem is: I updated the plugin 2 days ago, no additional changes, before the update accordions were working worderfuly, and after that there is a random behaviour. When a go to the site sometimes accordions appears, and some times they disappear, but after refreshing the site (F5), the accordions come back. Any idea guys what the problem could be?. I really appreciate all you help on this matter and thanks in advance. The sites are:

Estetica-Ginecologica

Ginecobstetricia