I am not receiving email notifications

The plugin was working fine until I noticed it was getting notifications in the email when someone submits a form. I’ve checked and it’s not in spam. I have also reviewed all the emails and there is nothing wrong.
Why am I not getting notifications in the email?

Screenshot: https://paste.pics/4b40d9b564e0bc903f9753a0eaccd7a7

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