Membership 1 broken, and Membership 2 refuses to install

Downloading install package from https://premium.wpmudev.org/wdp-un.php?action=install&key=c26c24b31e41c174de1e408d8ff537d0eaf47f7d&pid=1003656…

This is not about Dashboard. It's about Membership. WPMU did not offer Membership as an installed plugin on the list above. I have 200 members in limbo because membership is taking their subs but not entering their details...and when I tried to upgrade to M2 here's what happened:

Unpacking the package…

Installing the plugin…

Destination folder already exists. /data/20/1/2/11/1980174/user/2163170/htdocs/Investigate/wp-content/plugins/membership/

Plugin install failed.