Why is the alt attribute of images not displayed on a specific page of a Wordpress site?

Question

WordPress

The alt attribute for pictures, which is specified separately for each picture, is not displayed only on the pages of the site's photo gallery, for example:
https://polycar.com.ua/galereya/#gallery_1-1
https://polycar.com.ua/avtovyshky /#foto_1-1

You can see the alt in the admin panel in the photo.
There may be a problem with fancybox, which is present on all problematic pages
. On all other pages, the attribute is displayed correctly.
How can this be fixed?
Thanks in advance

Answer 1

There is an answer here: https://svitshkarpetok.com.ua/