weather api key not working? how to resolve this [closed]

I’m working with Open Weather API, but when i send an request for a city data, i get network error.

var apiKey = “b6278500dc4dc994511feaf7311bf025”;

function getWeather(city) {
    var url = `https://api.openweathermap.org/data/2.5/weather?q=${city}&appid=b6278500dc4dc994511feaf7311bf025&units=metric`;

    var xhr = new XMLHttpRequest();
    xhr.open("GET", url, true);
    xhr.responseType = "json";
    xhr.send(null);

    xhr.onreadystatechange = function () {
      if (xhr.readyState === 4) {
        output_section.style.display = "block"; 
        if (xhr.status === 200) {
          var DATA = xhr.response;
          
          var iconAlt = DATA.weather[0].description;
          var iconImgSrc = `https://openweathermap.org/img/wn/${DATA.weather[0].icon}.png`;