Why did my Xendit integration suddenly disappear?

Dear Sir/Mam,

I have done integration with alternate payment Xendit with Shopify account https://kia-tours-travel.myshopify.com

and I have tested with success, then suddenly Yesterday the Xendit Payment is gone from my Alternate Payment???

This is the check out link:

https://kia-tours-travel.myshopify.com/55572496535/checkouts/62f090859308b71cc8333006f6e990d2