Apple Pay not working (invalid / null entityId) #49

I got this error when I try to pay with apple:

[HyperpayPlugin/getCheckoutID] HttpException: 400: {"result":{"code":"200.300.404","description":"invalid or missing parameter","parameterErrors":[{"name":"entityId","value":null,"message":"invalid or missing parameter"}]},}

however, the entity id passed to the method getCheckoutID is correct and shows on the logs.