Jamie

There is no panels tab any longer. It should be under General tab in Advanced section now if you are using a current version of WordPress.

It looks like a caching issue because if I add a query string to the URL then only one footer loads.

e.g.

https://aggiornamenti.pointsolutions.it/soluzioni-software/?nocache

I would suggest disabling all caching to see if the issue resolves. If it does, then you know it’s an issue with caching settings – either server or via the plugin you are using.

You tried manually resetting the plugins as mentioned in the link in my last reply? Here it is again:
https://ww.wp.xz.cn/documentation/article/faq-troubleshooting/#how-to-deactivate-all-plugins-when-not-able-to-access-the-administrative-menus

Since your issue is with WooCommerce, I would recommend posting in that support forum instead
https://ww.wp.xz.cn/support/plugin/woocommerce/

This may be a plugin or theme conflict. Please attempt to disable all plugins, and use one of the default (Twenty*) themes. If the problem goes away, enable them one by one to identify the source of your troubles.

If you can install plugins, install and activate “Health Check”: https://ww.wp.xz.cn/plugins/health-check/
It will add some additional features under the menu item under Tools > Site Health.
On its troubleshooting tab, you can Enable Troubleshooting Mode. This will disable all plugins, switch to a standard WordPress theme (if available), allow you to turn your plugins on and off and switch between themes, without affecting normal visitors to your site. This allows you to test for various compatibility issues.
There’s a more detailed description about how to use the Health Check plugin and its Troubleshooting Mode at https://make.ww.wp.xz.cn/support/handbook/appendix/troubleshooting-using-the-health-check/

Try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.

If that does not resolve the issue, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue (theme functions can interfere like plugins).

Try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.

If that does not resolve the issue, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue (theme functions can interfere like plugins).

I’ve seen a plugin conflict cause shortcodes to stop rendering and also in some cases HTML/Markup errors.

Have you tried disabling all plugins except WPML to see if that makes any difference?