Google Maps API works on other server but not main server

See more:

Google-Maps

Ok I'm utterly confused. Google Maps API works FINE on local and live server, but not on my client's server. It throws the OVER_QUERY_LIMIT status, but it's NOT over the limit because it works fine on the other two servers when requesting from the url.

Here is my code to see what's going on:

// Load PHP File
function downloadUrl(url, callback) {
  var request = window.ActiveXObject ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest;

  request.onreadystatechange = function() {
    if (request.readyState == 4) {
      request.onreadystatechange = doNothing;
      callback(request.responseText, request.status);
    }
  };

  request.open('GET', url, true);
  request.send(null);
}

/*
 * Search locations near an address with a given radius and category
 * @param address    Address user types in (full or zip code)
 * @param radius     Radius drop down (25, 50, 75, etc)
 * @param category   Category drop down
*/
function searchLocationsNear() {
  // clear current locations
  clearLocations();

  var radius = document.getElementById('radius').value;
  var category = document.getElementById('category').value;
  var address = document.getElementById('address').value;
  var searchURL = 'ajax/getPlaces.php?addr=' + address + '&rad=' + radius + '&cat=' + category;

  // generate xml and markup map
  downloadUrl(searchURL, function(data) {
    var xml = parseXml(data);
    var markerNodes = xml.documentElement.getElementsByTagName('marker');
    var bounds = new google.maps.LatLngBounds();
    for (var i = 0; i < markerNodes.length; i++) {
      // set keys with marker nodes to pass to view
      var markerNum = i;
      var id = markerNodes[i].getAttribute('id');
      var logo = markerNodes[i].getAttribute('logo');
      var city = markerNodes[i].getAttribute('city');
      var state = markerNodes[i].getAttribute('state');
      var zip = markerNodes[i].getAttribute('zip');
      var phone = markerNodes[i].getAttribute('phone');
      var email = markerNodes[i].getAttribute('email');
      var web_link = markerNodes[i].getAttribute('web_link');
      var name = markerNodes[i].getAttribute('name');
      var address = markerNodes[i].getAttribute('address');
      var distance = parseFloat(markerNodes[i].getAttribute('distance'));
      var latlng = new google.maps.LatLng(parseFloat(markerNodes[i].getAttribute("lat")),parseFloat(markerNodes[i].getAttribute("lng")));

      // load view file
      $( '#listings' ).append($('<div>').load( 'ajax/listingFind.php', {
          id: id, 
          name: name,
          logo: encodeURIComponent(logo),
          address: address,
          city: city,
          state: state,
          zip: zip,
          phone: phone,
          email: email,
          web_link: encodeURIComponent(web_link),
          distance: distance,
          marker: markerNum
        } ));
      createMarker(latlng, name, address + '<br />' + city + ', ' + state + ' ' + zip);
      bounds.extend(latlng);
      fitToMarkers(bounds);
    }

    map.fitBounds(bounds);
    $('.pag-borders').show();
  });
}

getPlaces.php:

include_once('../../../app/scripts/config.php');
$googleMaps = new GoogleMaps();
$listingObject = new Listing();

// search places
$results = $googleMaps->get_places(trim($_GET['addr']), trim($_GET['rad']), array('category' => trim($_GET['cat']), 'status' => $listingObject->get_approved()));

// get xml
$xml = $googleMaps->generate_xml($results);

echo $xml;

get_places method:

/*
	 * Sets geocode lat and lng
	 * @param address     Street Address
	 * @param city        City
	 * @param state       State
	 * @param zip         Zip
	*/
	public function get_geocode($address) {

		$request_url = 'http://maps.googleapis.com/maps/api/geocode/json' . '?address=' . urlencode($address) . '&sensor=' . $this->sensor;

		$request = file_get_contents($request_url);
		$response = json_decode($request, true);

		if($response['status'] == 'OK') {
			// success
			$geometry = $response['results'][0]['geometry'];

			// Format:: Longitude, Latitude, Altitude
			$this->lat = $geometry['location']['lat'];
			$this->lng = $geometry['location']['lng'];

			return true;
		} else {
			// fail
			return false;
		}

	}

/*
	 * Get stores within mile radius of zip code
	 * @param zip      Zip Code
	 * @param radius   Mile Radius
	 * @param args     Other arguments such as category drop down
	*/
	public function get_places($zip, $radius, array $args) {

		// generate lat and lng for zip
		$this->get_geocode($zip);

		// start building query
		$this->select(array('id', 'name', 'address', 'city', 'state', 'zip', 'phone', 'email', 'web_link', 'user_id',
			'logo', 'lng', 'lat', '( 3959 * acos( cos( radians('.$this->get_lat().') ) * cos( radians( lat ) ) * cos( radians( lng ) - radians('.$this->get_lng().') ) + sin( radians('.$this->get_lat().') ) * sin( radians( lat ) ) ) ) AS distance'));
		$this->table($this->table);

		// see if any additional args exist - no for loop since defined indexes in array reference database columns
		if(count($args) > 0) {

			// set your counter
			$count = 0;

			// loops through args
			foreach($args as $key => $value) {
				if($count == 0) {
					$this->where($key, '=', $value);
				} elseif($count > 0) {
					$this->and_where($key, '=', $value);
				}
				$count++;
			}
		}
		
		// finish query build
		$this->having('distance', '<', $radius);
		$this->order_by('distance');

		$results = $this->all();

		return $results;

	}