Please see the problems shown on
<https://cran.r-project.org/web/checks/check_results_stplanr.html>.
Please correct before 2022-05-18 to safely retain your package on CRAN.
It seems we need to remind you of the CRAN policy:
'Packages which use Internet resources should fail gracefully with an informative message
if the resource is not available or has changed (and not give a check warning nor error).'
This needs correction whether or not the resource recovers.
The CRAN Team