TypeError: Cannot read property 'data' of undefined
    at Function.getInitialProps (/var/www/www-user/data/www/wbx/reactjs/.next/server/static/development/pages/sitemap.js:198:47)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async Function.getInitialProps (/var/www/www-user/data/www/wbx/reactjs/.next/server/static/development/pages/_app.js:4865:33)