I need help changing the email address where email alerts are sent

I need help changing the email address where email alerts are sent when new forms/ads are uploaded.

The following guide will help you do it in the form settings.

https://www.jotform.com/help/41-How-to-Find-and-Change-the-Email-Address-Used-for-Notification-Email 

Basically, it's in the Settings > Emails > Notification;