Errors

If the initialization failed, you will receive one of the of the following error codes.

"UNKNOWN_ERROR", "UNAUTHORIZED", "INVALID_JSON_PAYLOAD", "UNRECOGNIZED_PROPERTY", "INVALID_PROPERTY", "CLIENT_ERROR", "SERVER_ERROR", "INVALID_TRANSACTION_STATUS", "TRANSACTION_NOT_FOUND", "EXPIRED_CARD", "INVALID_CARD", "BLOCKED_CARD", "UNSUPPORTED_CARD", "INVALID_ALIAS", "INVALID_CVV", "DUPLICATE_REFNO", "DECLINED", "SOFT_DECLINED", "INVALID_SIGN", "BLOCKED_BY_VELOCITY_CHECKER", "THIRD_PARTY_ERROR", "REFERRAL", "INVALID_SETUP".