question about sendGrid code

Greetings,
I have a made a page following the instructions on this tutorial (Velo Tutorial: Sending an Email on Form Submission | Help Center | Wix.com), and have set up all the code in the backend. However, even though the form words the way it is supposed to (it feeds into a specific database), but the email is not generating, and I don’t see where in the code there may be a problem. I’ve checked the receiving inbox a few times and there’s no email there. sendGrid also reports not problems…so I am puzzled. Could one of you review the form, the backend, and let me know where the issue might be so I can correct it? Thank you.
website: www.aibetzy.com
Page: https://www.aibetzy.com/betzy-contact
I am using sendGrid as per the example listed in the tutorial mentioned.
Thank you.

These two examples should help:

Send Email with SendGrid NPM Interface

Send an email using the SendGrid NPM library.

Send Email with SendGrid REST Interface

Send an email using the SendGrid REST API.

I’ll take a look, thank you.