Issues with email reporting

Good afternoon !

I’m having trouble sending weekly reports to email. I have already checked that all emails are registered correctly, as well as make sure about the sending configuration: Weekly Schedule: Report will be sent on the Monday of each week.

I did not receive the weekly reports on 11/02/2019, I realized that I also had this problem the previous month.

I use version 3.7.0

What can it be ?

Thank you