Invalid CSRF Nodejs React

I have a Nodejs app with React in front. I implemented my csrf like:

// initial-csrf.js

var csrf = require("csurf");

const csrfProtection = csrf({});

module.exports = {
 csrfProtection,
};

//Server.js 
 app.use(csrfProtection); // It goes after app.use(appSession);


// Session controller 

 const csrfToken = (req, res) => {
 res.send(req.csrfToken());
};

// Initial express session

 var appSession = session({
  store: new postgresSession({
  pool: sessionDBaccess,
  tableName: "sessions",
 }),
 name: "mCookie",
 secret: "my-secret"
 resave: false,
 saveUninitialized: false,
 cookie: {
  maxAge: 1000 * 60 * 60 * 24 * 7,
  sameSite: true,
  secure: false,
 },
});
}

In React side : whenever I send a request I do like :

 handleCreate() {      
  const csrf_data = {};

    const csrf_response = callAxios(
    "/api/sessions/csrfToken",
    "GET",
    csrf_data,
    );
   csrf_response.then((csrf_res) => {
   const data = {
    // some data
  };
  const response = callAxios("/api/sessions", "POST", data, csrf_res.data);
  response.then((res) => {
    if (res) {
      if (res.data) {
        // Some functions
      } else {
        if (res.response) {
          // Some functions
        }
      }
     }
    });
   });
  }

This configuration works very well if there is one instance of the app (one pod). If I create multiple replicas from the app in my kubernetes cluster. I get CSRF invalid error. In fact I double check and my csrftoken is in session table in the database. Any ideas?