it’s not going to remove any of the packages.
I knew about it but I did not know the uninstalling process of packages was that buggy. I uninstalled from the package manager. It flagged but did not process up to a certain point when it decided to finally uninstall it (even though I already removed the files from %appdata%/Dynamo/Packages). Only after the flag was out of the way, I could install Archi-Lab without crashing.
Thanks for the Archi-Lab packages @Konrad_K_Sobon and for the reply