rayled

The problem was solved for me, thanks! In the popup-maker plugin there is a file:

\wp-content\plugins\popup-maker\templates\popup.php

There is a line: <div id="pum-<?php…

I added data-lenis-prevent to this DIV. LENIS started working correctly. But of course I can’t change the code in the plugin, because it is constantly updated. So I had to add JS to my child theme:

document.addEventListener('DOMContentLoaded', function () {
var popupElement = document.getElementById('pum-45');
if (popupElement) {
popupElement.setAttribute('data-lenis-prevent', '');
}
});

pum-45 here is the id of my specific popup window. Other people will have a different number.