How can i solve this error with my package?

General
1

Hello, I am having trouble downloading the supernova package. I keep getting this error. Please help this is due tonight and I can't figure it out.
My code:
#Alternatively, can use SUPERNOVA
install.packages("supernova")
library(supernova)

My output code:

install.packages("supernova")
trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/supernova_2.2.3.tgz'
Warning in install.packages :
cannot open URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/supernova_2.2.3.tgz':
Warning in install.packages :
download of package ‘supernova’ failed

2

I'm not sure what's causing the download step of install.packages("supernova") to fail (it worked when I tried it on my system). However, you can download the package zip file directly by clicking on the package URL (https://cran.r-project.org/src/contrib/supernova_2.2.3.tar.gz) and install it from your hard drive. Place the package file in your current working directory and run install.packages("supernova_2.2.3.tgz", type="source", repos=NULL).