Could not cast value of type 'NSNull' (0x7ff863f30f58) to 'NSString' (0x7ff863f2e638).

[shadyaziza]

Executing this line

final result = await hyperpay.pay(card);

Results in this error

Could not cast value of type 'NSNull' (0x7ff863f30f58) to 'NSString' (0x7ff863f2e638).

and app crashes.

hyperpay: ^1.0.0-dev.7