My form will not allow me to click submit after selecting the purchase items

I used PayPal to set up and sell products on my form, but the 'Use PayPal Buttons' is not an option in the additional gateway settings. I added a 'submit' button via 'add new form element' instead, but this button won't redirect to the PayPal payment site with the customer's calculated totals. How can I fix this?

I have cloned your form and performed some test submissions, but I couldn't reproduce your issue. Once I fill the form and select some products, noting down the calculated amount, I click submit and I'm redirected to PayPal checkout with that exact calculated amount.

Here is my clone of your form: https://form.jotform.com/71367893314968

Could you please refresh your browser cache and try again? One of the tools to do so is www.refreshyourcache.com/en/home/

I hope this helps. If you need further assistance please let us know. Thank you.