关于GEE代码运行错误的问题，请各位专家解答！

以下是运行代码

//// Add column for area in square kilometers
var regions_with_area = table.map(function(feature) {
  return feature.set({areakm2: feature.geometry().area().divide(1000 * 1000)});
});
print(regions_with_area);
//// Load FIRMS dataset as an image collection.Select only the brightness temperature band
var FIRMS = ee.ImageCollection('FIRMS').select(['T21']);
//// Classify each daily image as binary fire(1) or no fire(masked)
var FIRMS_fire = FIRMS.map(function(image) {
  return image.gte(ee.Image.constant(300)).set('year', image.get('year'));
  });
//// create list of years over which to iterate
var years = ee.List.sequence(2001, 2017);
//// Iterate through years and create rasters of total number of fires per year
var images_by_year = years.map(function(year) {
    var filtered = FIRMS_fire.filter(ee.Filter.calendarRange(year, year, 'year'));
    return filtered.sum().set('year', year);
  });
//// Make the result an Image Collection
var summed_fires = ee.ImageCollection(images_by_year);
//// Print results and add them to the map 
print(summed_fires);
Map.addLayer(summed_fires,{},'summed_fires');
//// Calculate total value per KBA boundary per image in the annual image collection
var results = summed_fires.map(function(image) {
  return image.reduceRegions({
    collection: regions_with_area,
    reducer: ee.Reducer.sum(),
    scale: 1000
  }).map(function(f) {
    // Add a year property to each output feature
    return f.set('year', image.get('year'));
  });
});
//// Flatten the results
var kba_FIRMS = ee.FeatureCollection(results).flatten();
////Export the output feature collection to Google Drive as a csv file
Export.table.toDrive(kba_FIRMS,'kba_FIRMS');
////Add the output feature collection to the map
Map.addLayer(kba_FIRMS,{},'kba_FIRMS');