# Error when trying to purchase a section

Payments through Shopify apps are handled by Shopify themselves.

The most common reason for getting an error while trying to purchase a section from section store is that you don't have a valid payment method connected to your store.

Your payment card might have expired or for other reasons is not working right now.

How to fix that:

1.  From Shopify admin go to 'Settings'.
2.  Go to 'Billing' from the left side menu.
3.  Make sure you have a valid payment method connected.

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**Related articles**

- [Invoices, Billing and Canceling](https://section-store.orka.help/a/invoices-billing-and-canceling-plain-guide)
- [Dev Store Purchase](https://section-store.orka.help/a/dev-store-purchase)
- [Refund & Exchange](https://section-store.orka.help/a/refund)

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