Unsecured form not able to receive payment from my customer

Hi I recently had a customer try to make a payment through my website but her bank didn't allow her to make the payment because they said she was submitting her information to an unsecured form. Is there anything I can do so this doesn't happen again.

All forms you created here in JotForm are secured. Please check your website where you embed the form if it is secured too.

You can also give the direct form link to your customer by following this guide: https://www.jotform.com/help/261-How-to-Create-a-Custom-URL-of-a-Form