Your email address "firstname.lastname@example.org" was in the bounce list of system. Below is the reason given by the system:Reason(s) : 554 5.7.0 [internal] sending account is NOT active
I have just removed your email address from the bounce list. So now you should be able to receive email notification.
Please check this guide that will help you with common problems with emails not being sent: Why-I-am-not-Receiving-Email-Notifications
Also please check the below guide, which explains, how to setup email alerts to prevent email bouncing related issues:
If you're still having problems with your emails, please set up SMTP in your account, this way you will have more control over the emails, here is the guide: How-to-Setup-SMTP-for-a-Form