Restore the email's default content

The email content for several of my forms are empty, and I wanted to know if there's a way to restore its default content instead of manually adding them on by one on the content editor since there are a lot of fields (200~350 in a couple of forms), all of them drop-down menus with calculation values. Since they're empty, the emails received comes with a blank body. On the other hand, the PDFs are populated accordingly after usind the PDF editor tool.

I made 6 forms in total, in a step-by-step way using the pre-populate field tool. I cloned each one after the last, so since the first one had an empty e-mail content field, all of them are empty too.

Here are some example shots:https://imgur.com/a/LhsJpix

You should create a new notification email to restore email content. Please follow these steps. 
1. Create a new notification email. 
2. You will see the default email content. Please do not forget to set recipients. This is the test email. 3. Please remove the old notification email. Can I ask if you have any issue with PDFs?