Artem on "[Plugin: Aqua Page Builder] JS script error"

location: assets/js/aqpb.js, line 398

/** Sort nav order **/
$('.aqpb-tabs').sortable({
     items: '.aqpb-tab-sortable',
     axis: 'x',
});

Please remove "," from the last attribute value. It create script errors in some old browsers.

https://wordpress.org/plugins/aqua-page-builder/