IDPay v1.1 - 406 Error - order_id must not be empty

[EhsanFox]

Describe the bug
The package uses the v1.1 of IDPay, however, requesting for creating a payment, throws an error saying order_id must not be empty.

To Reproduce
Try to request and create a payment with the samples

Expected behavior
Creating the payment

[Keivan-sf]

I cannot reproduce this since order_id seems to be generated and sent in the request. Can you provide more info please? Like the actual logs and errors
Also idpay seems to be tested with real credentials as mentioned in supported drivers table