问出现错误"callback is not a function“

EN

const data = require('./data');
const mssql = require('mssql');
const dataFunctions = require('./dataFunctions');



var AllData;

data.GetData((d)=>{
    AllData=d;
    //var years = Object.keys(AllData.rates)
    //console.log(AllData.rates[years[1]]['EUR']);
    //console.log(AllData);
    console.log(dataFunctions.GetYearByCurrency(d,2016,'USD'));
});

const fetch = require('node-fetch');

const GetData =(callback)=>{
    fetch('https://api.exchangeratesapi.io/history?start_at=2015-01-01&end_at=2020-09-11&base=ILS')
    .then(response => response.json())
    .then(data => { 
    callback(data)
    })
}

module.exports ={
    GetData
}

 var GetYearByCurrency = (data,year,currency,callback) => {
   var rates = [];
    for (let m = 1; m <= 12; m++) { // Do a loop for each month of the year
        const numM = m < 10 ? `0${m}` : m, //For our method of date filtering, we need to add a leading zero for Jan-Sept
        month = Object.entries(data.rates) // Convert the rates objects to [key, [values]] arrays
          .filter(day => {
            const splitDate = day[0].split("-"); // Bear's method of splitting up the date string so we can compare month and year
            return splitDate[1] == numM && splitDate[0] === "year"; // Filter them to 2019 and the current month
          })
          .map(day => day[1].currency) // Return a new array with only the USD values for that month
          rates.push(month) // Push this array to our result array
          callback(rates);
          
  }
}

module.exports ={
  GetYearByCurrency
}