Checkout error

I am facing error while using Laybuy as checkout payment method.
But for some reason order came in WP-Dashboard successfully with payment status in “Pending payment” .

Here is the payment error message:
Error message : Error processing checkout. Please try again.

Plugins:
WooCommerce: Version 4.7.0
Clearpay Gateway for WooCommerce: Version 2.2.2

—-
WordPress: Version 5.7