Error connecting Tsheets api to Google apps script

function fetch() {var settings = {"async": true,"crossDomain": true,"method": "GET","headers": {"Authorization": "Bearer "+token,"User-Agent": "PostmanRuntime/7.20.1","Accept": "*/*","Cache-Control": "no-cache","Postman-Token": postman_token,"Host": "rest.tsheets.com","Accept-Encoding": "gzip, deflate","Connection": "keep-alive","cache-control": "no-cache"
    }
  }
  var now = new Date();
  var day = now.getDate()>9? now.getDate():'0'+now.getDate();
  var date = now.getFullYear()+'-'+now.getMonth()+'-'+day;
  var url = organization+'/timesheets?start_date='+date;
  Logger.log(url);
  var response = UrlFetchApp.fetch(url,settings);
  Logger.log(response);
}