Jotform page is working on the computer but not on the mobile

The page that leads to the form is here:

http://hastiefitness.com.au/2wksfor37/

For some reason, when we click on the button to "secure my spot today" on the computer, it loads the form fine, but on our mobile devices it is not working...

Hello,

Thank you for contacting us.

I've checked your web page that you shared with us. I opened your form on my mobile phone. I could enter all fields successfully. As you can see below screenshots:

I could see the "Complete Registration" button. I've entered a test credit card information but your Stripe payment is on the Live mode. So, I could not submit the form, however, I could receive this message alert successfully. It means you form works successfully. Here:

Please try to replicate the issue again. If the problem still persists, please provide us your mobile phone details. You can add a screenshot, it may be helpful to understand your issue.

We will be waiting for your response.