Thank you for responding, when configuring “webhook” in my Stripe account I choose version N\A , don’t know if this is the cause of the above error. In my opinion it could also be due to the plugin. If the customer does not have enough money in the card when signing up for a trial subscription, an error will occur. In case the customer has enough money in the card when registering for a subscription, the card will then deduct money and immediately get a refund and start the normal trial process.