Help please, how uninstall nodebb-package-manager

[feroom]

I`m install plugin nodebb-package-manager
now ./nodebb upgrade have error

root@debian:/webserver/forum/nodebb# ./nodebb upgrade

1. Bringing base dependencies up to date...
   Error: Command failed: /usr/bin/env npm i --production
   npm ERR! Linux 3.16.0-4-amd64
   npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "i" "--production"
   npm ERR! node v6.9.1
   npm ERR! npm v3.10.9
   npm ERR! path /webserver/forum/nodebb/node_modules/nodebb-package-manager
   npm ERR! code EISGIT

npm ERR! git /webserver/forum/nodebb/node_modules/nodebb-package-manager: Appears to be a git repo or submodule.
npm ERR! git /webserver/forum/nodebb/node_modules/nodebb-package-manager
npm ERR! git Refusing to remove it. Update manually,
npm ERR! git or move it out of the way first.

npm ERR! Please include the following file with any support request:
npm ERR! /webserver/forum/nodebb/npm-debug.log

How fix it?

i can npm rm nodebb-package-manager

Have error

root@debian:/webserver/forum/nodebb/node_modules/nodebb-package-manager# npm rm nodebb-package-manager -D
npm WARN nodebb-package[email protected] license should be a valid SPDX license expression

Help me please

[feroom]

Hard fix
I`m remove this folder from node_modules and upgrade nodebb..
What was it?