'Circular structure' error when running on server?

Question

React

NEXTJS - when starting a local server, everything works, but when running on a remote test server, I get an error

Circular structure in "getInitialProps" result of page "/home". https://err.sh/zeit/next.js/circular-structure

The code

Home.getInitialProps = async ({ reduxStore, query }) => {
  const type = query.type || reduxStore.getState().app.type;
  await reduxStore.dispatch(initPage(query));

  return {
    namespacesRequired: ['common'],
    type
  };
};

Answer 1

See the contents of store. You either write cyclic data structures there, or write some third-party library object containing such data.
If you write your own helper in the store that uses third-party libraries, which is re-created on the client, then implement the toJSON method in it:

toJSON() {
  return '[Helper Name]';
}