Just to gather some additional context, have you set up a payment gateway for your online store? In order for the checkout to accept payments, you will need to set up a payment gateway. You can check and enable payment gateways by navigating toSettings > Paymentsto begin.
If you can confirm that you have a payment gateway, you will need to select aShopify subscription planto have the checkout enabled and allow your customers to complete their purchases.
Looking forward to your response, let me know if you have any questions.
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