Empty notification email received

2). I am receiving in my email that a form was completed, once completed, from jotform, but the body of the email is not showing me information (see screenshot 1)

I have checked the Notification email configured in your form, and it is empty. You can manually add data to it, or you can delete it, and create a new one, which will create a default email with all values from your form.

You can use the following link to see how to configure new notification:
https://www.jotform.com/help/25-setting-up-email-notifications/

Let us know if you have any additional questions.