Hello Alberto,
When I edit the page, I am seeing this error in the console:
Mixed Content: The page at 'https://www.btstylepictures.com/cornerstone/edit/69' was loaded over HTTPS, but requested an insecure script 'http://cdnjs.cloudflare.com/ajax/libs/jquery-mousewheel/3.1.13/jquery.mousewheel.min.js'. This request has been blocked; the content must be served over HTTPS.
send @ jquery.min.js?nocache:2
ajax @ jquery.min.js?nocache:2
(anonymous) @ jquery-migrate.min.js?nocache:2
(anonymous) @ jquery-migrate.min.js?nocache:2
ce._evalUrl @ jquery.min.js?nocache:2
$e @ jquery.min.js?nocache:2
append @ jquery.min.js?nocache:2
(anonymous) @ jquery.mCustomScrollbar.js?nocache:59
(anonymous) @ jquery.mCustomScrollbar.js?nocache:63
(anonymous) @ jquery.mCustomScrollbar.js?nocache:45
(anonymous) @ jquery.mCustomScrollbar.js?nocache:47
frontend.min.js?nocache:1 Uncaught SyntaxError: Cannot use import statement outside a module (at frontend.min.js?nocache:1:1)
The issue could also be caused by a plugin conflict, amongst other things. Please check out this troubleshooting article here and follow the instructions for the following sections (where appropriate):
Testing for Plugin Conflict
Child Theme
CSS/JS Customization
Disabling Cache
Disabling CDN
I would recommend that you start the test for plugin conflict with the Yoast SEO plugin. Make sure it is up to date.
Remember to clear all your caching features (plugin, server-side, CDN, and browser’s cache) after updating so that the code from the latest release is always in use. This will help you to avoid any potential errors.
Kindly let us know how it goes.