Approve notification not working

When I approve someone they don’t receive the approve notification.

I have the smtp setted correctly, and html message created

This are the active plugins I have:

– Duplicate Page
– Duplicator
– Gravity Forms
– Gravity Forms User Registration Add-On
– Heartbeat Control by WP Rocket
– Lazy Load – Optimize Images
– New User Approve Premium (Premium)
– Slider Revolution
– SMTP Mailer
– Styles & Layouts Gravity Forms
– Templatera
– Total Theme Core
– Ultimate GDPR & CCPA
– WE-Varnish-Cache
– Wordfence Security
– WPBakery Page Builder
– Yoast SEO

The page I need help with: [log in to see the link]