All my error messages say "undefined" in the console.

const http = require('http');

//Print Error Messages
function printError(error) {
  console.error(error.messsage);
}

//const season = 1954;

function printMessage(races, season) {
  const message = `There are ${season} grandprix at the ${races} season.`;
  console.log(message);
}

//printMessage(22,2017);
//Connecting to the API url (http://ergast.com/api/f1/2012.json)
function getSeason(season) {
  try {
    const request = http.get(
      `http://ergast.com/api/f1/${season}.json`,
      response => {
        if (response.statusCode === 200) {
          //console.dir(response.statusCode);
          let body = '';
          //Read the data
          response.on('data', data => {
            //Changing the buffer into a string.
            body += data;
          });
          response.on('end', () => {
            try {
              //Parse the data
              const seasonF1 = JSON.parse(body);
              // console.log(body);
              // console.log(typeof body);
              //console.dir(seasonF1);
              printMessage(season, seasonF1.MRData.RaceTable.Races.length);
              //Print the data
            } catch (error) {
              printError(error);
            }
          });
        } else {
          const message = `There was an error getting the season for ${season} (${
            http.STATUS_CODES[response.statusCode]
          })`;
          const statusCodeError = new Error(message);
          printError(statusCodeError);
        }
      }
    );
    request.on('error', printError);
  } catch (error) {
    printError(error);
  }
}
//accept season as a command line argument
//const season = process.argv[2];
//get(season);
// get(1978);
// get(2001);
//console.log(process.argv);
// const seasons = [1978, 1984, 1999, 1950, 1954, 2002];
// seasons.forEach(getSeason);
const seasons = process.argv.slice(2);
seasons.forEach(getSeason);