Yup, this has been talked about a bunch of times on the forums.
The key is the ‘ENOTFOUND’. It’s saying that registry.npm URL can not be found. (getaddrinfo)
In short, its a network config ‘error’ in the EPIC. (As shown in your screenshot ‘This is a problem related to network connectivity’)
You either don’t have a DNS configured or you don’t have a gateway configured.
One or the other or both.
Bottom line, the EPIC can not find the Node-RED registry to install any nodes.
Tip, you can either make some changes and just keep trying the install node process, or you can hit up the network tools in groov Manage and try and ping ‘registry.npmjs.org’. (Or any other Internet host name).