I wished to perform a Bayesian Network meta-analysis in R version 3.6.2 using the gemtc package. However, when I tried installing the package, I received a warning message which stated: "package ‘gemtc’ is not available (for R version 3.6.2)".

When I opened the CRAN repository, it stated that Package ‘gemtc’ was removed from the CRAN repository and formerly available versions can be obtained from archive.

However, I am not able to use the previous versions of gemtc package.

Is there any way to use and install the "gemtc" package in R for conducting Bayesian Network Meta-analysis?