New friction surfaces don't work about malariaatlas

[geryan]

+1 on this issue - can't get either the above or below surfaces, with the following issue.

>library(malariaAtlas)
> travel <- getRaster("A global friction surface enumerating land-based travel speed for a nominal year 2015")
Downloading list of available rasters...
All specified surfaces are available to download.
Checking if the following Surface-Year combinations are available to download:

    RASTER CODE  YEAR 
  - A global friction surface enumerating land-based travel speed for a nominal year 2015:  DEFAULT 

Downloading list of available rasters...
Raster download error - check 2015_friction_surface_v1_Decompressed surface is available for specified extent at malariaatlas.org/explorer.
https://malariaatlas.org/geoserver/Explorer/ows?service=WCS&version=2.0.1&request=GetCoverage&format=image/geotiff&coverageid=2015_friction_surface_v1_Decompressed
1 Raster download error(s). Details have been returned.
Error in .rasterObjectFromFile(x, band = band, objecttype = "RasterLayer",  : 
  Cannot create a RasterLayer object from this file. (file does not exist)
In addition: Warning message:
/var/folders/52/wcfrp5q96hs368kt8wc6sz8mmbjjv2/T//RtmpwhgMeC/getRaster/character(0): No such file or directory (GDAL error 4)