How to change sender name of the Notifier email?

I assume you're referring to this form: https://www.jotform.com/72415359605155

The sender name in your Notifier is set to Child's name:

If you were referring to that issue?

This guide might help as well: https://www.jotform.com/help/25-Setting-up-Email-Notifications

Let us know if you have any further questions.

Thank you!