Hi @gonzalogg
Do you need the form to show up on the front end? If you do, please check this page: https://www.advancedcustomfields.com/resources/create-a-front-end-form/.
I Also suggest you check the Getting Started section on the resource page here: https://www.advancedcustomfields.com/resources/.
If you need further support that is more related to your theme, I suggest you ask your theme author instead as he/she is the one who knows about the theme.
I hope this helps 🙂
