Notifications

I have installed the WP-CRM plugin on my website, the developers did not finish their work, so I have the following query:
Within the users they created a role through a URL https://www.arfincaraiz.com/wp-login.php here, the user is registered with a capabilities which are working, the theme we use on the website is Realhomes , and this user, enters to create a property, before a notification email arrived to the administrator, which said for review, then the administrator approved and was published. He would also email the administrator when the user deleted the post, so the administrator approved deleting. These notification emails no longer arrive, where should I adjust this and how can I do it?

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