install.packages("ReliabilityTheory")

hi I get the following error could you help me please
ERROR: dependency 'PhaseType' is not available for package 'ReliabilityTheory'

I ry to instul 'ReliabilityTheory' package from GitHub as

install.packages("devtools")
library("devtools")
install_github("louisaslett/ReliabilityTheory")

PhaseType is no longer in CRAN but you can try to install it from the GitHub mirror.

remotes::install_github("cran/PhaseType")

Thank you so much it help me alot