Error when trying to download data using a polygon

[nikosGeography]

I am trying to download worldpop data for the city of Los Angeles. My polygon's CRS is WGS 84. When I execute:

setwd("C:/Users/Geography/Desktop/test")

wpCPRPopulation (year = 2018, 
                 shapeFilePath = "C:/Users/Geography/Desktop/test/lc_wgs.shp", 
                 verbose = TRUE)

I am getting this error:

Year:  2018
Path to shape file:  C:/Users/Geography/Desktop/test
Shape file name:  lc_wgs
Reading layer `lc_wgs' from data source 
  `C:\Users\Geography\Desktop\test\lc_wgs.shp' using driver `ESRI Shapefile'
Simple feature collection with 1 feature and 1 field
Geometry type: POLYGON
Dimension:     XY
Bounding box:  xmin: -118.6508 ymin: 34.05007 xmax: -118.3762 ymax: 34.28575
Geodetic CRS:  WGS 84
Start sending polygon to https://api.worldpop.org
[==================================================] 100% sending 1's out of 1. Processing Time: 00:00:00
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Send failure: Connection was reset

Why that error and how can I download data for the polygon I provide? I am using R 4.3.1, RStudio 2023.06.1 Build 524 and Windows 10. Also, I can provide the shp if needed.