secure lock missing for ssl on checkout

Hi thank you for a great plugin, all seems to be working well although I’ve just set it up today.

I have a quick question, I have an ssl on my website the lock shows all the way through checkout until the page that says ‘proceed to payment’ and then you click on it and the pop up shows where they enter their card details. The secure ssl lock isn’t showing on just those two pages. Is it meant to be like that or haven’t I configured it correctly. It’s just that people may be put off going through payment and entering there card number if the lock isn’t showing. They won’t be as confident.

The website is https://www.sarahoffley.com/photovouchers.

I look forward to hearing from you.

thank you!

https://www.ads-software.com/plugins/yith-woocommerce-stripe/