{"errors":[{"message":"Error: ServiceResolver: Request to http://varnish/graphql failed: ServerError: Response not successful: Received status code 500\n at makePromise.then.catch.e (/usr/src/app/node_modules/@magento/upward-js/lib/resolvers/ServiceResolver.js:122:23)\n at process._tickCallback (internal/process/next_tick.js:68:7)"}]}