etherpad-lite: Can't install my plugin: No valid version available

I’ve developed a plugin for etherpad. But when I try to install it I get : “Can’t install my plugin: No valid version available”. Happens when using npm install or the web interface

My package.json looks like this

{
  "name": "ep_auth_session_samesite_none",
  "version": "3.0.0",
  "description": "Using samesite none. Provides a route that authenticates the user with the provided sessionID parameter and redirects to the given padName",
  "main": "index.js",
  "dependencies": {},
  "engines": {
    "node": ">= 0.6.0"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "git://github.com/woeterman94/ep_auth_session.git"
  },
  "author": "woeterman94",
  "license": "MIT",
  "bugs": {
    "url": "https://github.com/woeterman94/ep_auth_session/issues"
  },
  "homepage": "https://github.com/woeterman94/ep_auth_session",
  "keywords": [
    "etherpad",
    "authentication",
    "session"
  ]
}