Since I can't find an “issues” tab, I am posting an issue here hoping that someone will read it and answer me...

Hello, I have installed the latest version of the extension in Magento 2.4.3 I have noticed that when you go to checkout page, and before selecting payment method, a pop up opens this page:

https://www.simplify.com/commerce/pay/

with this notice:

The requested URL was rejected. Please consult with your administrator. Your support ID is: 11818401284846422772 [Go Back]

Why is that?

You can check it here: https://kois-optics.gr