[R-pkg-devel] HTTP status was '403 Forbidden' on function examples

Dear R-package-devel list,

I just submitted an update of 'geotopbricks' on CRAN checks returns the
following error (only Debian-dev).

The example dataset files are available on line through an external URL
that Debian-server cannot access and returns HTTP status 403 Forbidden
(attached below the error message)
I do not know the cause of this error and I kindly ask if this may depend
on the server where the check is launched.
The same check with other distributions (local Ubuntu 16.04 LTS
distribution included) works successfully, downloading correctly example
files from
https://www.rendena100.eu/public/geotopbricks/simulations/panola13_run2xC_test3/geotop.inpts
.
I thank you for any help or suggestion.
Best
Emanuele



* checking examples ... ERROR
Running examples in ?geotopbricks-Ex.R? failed
The error most likely occurred in:

base::assign(".ptime", proc.time(), pos = "CheckExEnv")
### Name: create.geotop.inpts.keyword
### Title: Creates an 'geotop.inpts' files the keyword and their values of
###   a date.frame like the one returned by
###   'declared.geotop.inpts.keywords'
### Aliases: create.geotop.inpts.keyword

### ** Examples


library(geotopbricks)

#Simulation working path
wpath <- 'https://www.rendena100.eu/public/geotopbricks/simulations/panola13_run2xC_test3'
df <- declared.geotop.inpts.keywords(wpath=wpath)

Warning in file(con, "r") :
   cannot open URL
'https://www.rendena100.eu/public/geotopbricks/simulations/panola13_run2xC_test3/geotop.inpts':
HTTP status was '403 Forbidden'
Error in file(con, "r") :
   cannot open the connection to
'https://www.rendena100.eu/public/geotopbricks/simulations/panola13_run2xC_test3/geotop.inpts'
Calls: declared.geotop.inpts.keywords -> <Anonymous> -> file
Execution halted