The payment popup triggered by PayPal Subscribe button gets closed immediately onClick!

[mo_farsi]

Hi!

I'm trying to add PayPal subscribe button on my website, but the popup triggered by PayPal Subscribe button gets closed immediately onClick!

I used WordPress Divi theme.

The testing button is located on this page: https://time-to-speak.com/pricing-persian-speaking-clubs/

Thanks in advance!

Regards,

Mohammad