1.Your video shows for desktop site (non-amp).
https://prnt.sc/z031lfkueo84
Can you try at
https://masskoz.com/satinal/?no-amp=1 (on desktop url changes automatically to https://masskoz.com/satinal/ please care for this)
https://prnt.sc/ITBdGW0yV_Y2
2. I don’t why but PayTR was active while its shop number, shop password and shop secret key areas were empty this morning. I filled them again. I am sure yesterday they were filled.
3. At second step of checkout (https://prnt.sc/_cTJWToqyXOs) when i say pay with credit card (https://prnt.sc/zjNcEEKe07yr) it happens again (https://prnt.sc/4-MecvjUZmk6) for mobile with amp.
If i try at desktop site (https://masskoz.com/satinal/) with credir card payment option, it works.