installing plugins on vera2

I tried to install 2 plugins on vera2 that I have not used for 3 years.

first I checked the firmware and get the message ’ You are running the latest version: 1.1.1362 "

I would like to use it with EZMotion ZWave Wireless 3-in-1 sensor Motion-Temperature-Luminance sensor which is also known as the HomeSeer HSM100.

The wiki (ExpressControls3in1 - MiOS) suggests to install these plugins from mios market place

MiOS Update Utility
DataMine plugin

for both of them I get a rather nonsensical error message “Installation failed, reason: to install plugin”

Is there are remedy to this situation?