Sharing with the WhatsApp button does not work, when you click, it does nothing, no action. Check in all browsers, but doesn't share anything.
There is this error showing in browser error console:

Failed to launch 'whatsapp://send?text=https%3A%2F%2Fconxiones.com%2Fel-oportuno-fallecimiento-de-un-ingeniero-de-la-boeing' because the scheme does not have a registered handler.

Regards.