Good evening Charles and welcome back!
Thank you for reaching out to us.
We are sorry to hear about the fact that you are not receiving notifications when users submit events for review.
I would love to help you with this topic.
As a first troubleshooting step, could you please provide us with your complete system information in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Secondly, would you mind sharing a screenshot of your settings under Events -> Settings -> Community ?
Finally, if you haven’t already, I would recommend installing and configuring a plugin such as: https://wordpress.org/plugins/easy-wp-smtp/
This has been useful to many users in your situation.
Best regards,
Geoff B.