When I use getServerSideProps the call to the Contentful CMS api fails with a 500 error. This appears on the page /blog but not on other pages (e.g. /clarity) on the same site.
I get similar errors for blog posts (e.g. blog/julian-treasure-iris-pod) if I write the URL manually in the nav bar.
If I use getStaticProps on the /blog page then I can use that to route to blog posts (e.g. blog/julian-treasure-iris-pod).
Routing works as expected locally and there are no build errors. The problems only occur after deployment.
Any help greatly appreciated, thanks.