[iOS] E_SERVICE_ERROR what could be the causes?

[renatomserra]

Hello,

had a couple of iOS users with the following error when trying to purchase my consumable:

{"productId":"****","responseCode":"1","code":"E_SERVICE_ERROR","debugMessage":"L’opération n’a pas pu aboutir. (StoreKit.StoreKitError erreur 1.)","message":"L’opération n’a pas pu aboutir. (StoreKit.StoreKitError erreur 1.)"}

Any help in understanding why? i and other users were able to purchase