Any Ideas as to why getStaticProps wont run?

[IBanda]

I'm using shopify's JavaScript buy sdk;

``export const getStaticPaths = async () => {
const products = await client.product.fetchAll();
const fetchedProducts = JSON.parse(JSON.stringify(products));
const paths = fetchedProducts.map((product) => ({
params: {
id: product.id,
},
}));
return {
paths,
fallback: false,
};
};
export const getStaticProps = async ({ params }) => {
const { id } = params;
try {
const product = await client.product.fetch(id);
const json = JSON.stringify(product);
return {
props: {
product: json,
},
};
} catch (error) {
console.error(error.message);
}
};

---

Strange when I set fallback to true it works but produces the 'can't set headers after sent to client' error but getServerSideProps works fine. There's nothing more to the code just what I pasted above
Thanks