automatic mail sending doesn’t work

hey Sidney!

unfortunately, the automatic mail sending doesn’t work on one of my sites – please see screenshot: https://drive.google.com/file/d/1mTZtERR4tRf_m0K4tXmaoPkfbkxFQ4zZ/view?usp=sharing
even if the time has passed, the mail doesn’t get send. when refreshing the site, the time gets updated but after passing this time, nothing happens again.

can you please have a look into this matter? 🙂
then I’ll send you my credentials.

thank you!

greetings
Diana

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