Not able to install the package isofor from github.

[sanjeeban57]

Hi, While trying to install the package ,i am getting the below error --

Warning in install.packages :
unable to access index for repository https://github.com/Zelazny7/isofor.git/src/contrib:
cannot open URL 'https://github.com/Zelazny7/isofor.git/src/contrib/PACKAGES'
Warning in install.packages :
package ‘isofor’ is not available (for R version 3.5.0)
Warning in install.packages :
unable to access index for repository https://github.com/Zelazny7/isofor.git/bin/windows/contrib/3.5:
cannot open URL 'https://github.com/Zelazny7/isofor.git/bin/windows/contrib/3.5/PACKAGES'