error when logging in

[bruce]

Hi.

Test ubuntu server has some changes to node/nodejs. In logging in, a
number of updates are applied due to system updates == I'm assuming
latest version of ubuntu. I simply selected yes/default.

However, I now get the following err when loggin in:
internal/modules/cjs/loader.js:1032
  throw err;
  ^

Error: Cannot find module 'node:path'
Require stack:
- /root/.nvm/versions/node/v14.4.0/lib/node_modules/npm/lib/cli.js
- /root/.nvm/versions/node/v14.4.0/lib/node_modules/npm/bin/npm-cli.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:1029:15)
    at Function.Module._load (internal/modules/cjs/loader.js:898:27)
    at Module.require (internal/modules/cjs/loader.js:1089:19)
    at require (internal/modules/cjs/helpers.js:73:18)
    at Object.<anonymous>
(/root/.nvm/versions/node/v14.4.0/lib/node_modules/npm/lib/cli.js:2:18)
    at Module._compile (internal/modules/cjs/loader.js:1200:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1220:10)
    at Module.load (internal/modules/cjs/loader.js:1049:32)
    at Function.Module._load (internal/modules/cjs/loader.js:937:14)
    at Module.require (internal/modules/cjs/loader.js:1089:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/root/.nvm/versions/node/v14.4.0/lib/node_modules/npm/lib/cli.js',
    '/root/.nvm/versions/node/v14.4.0/lib/node_modules/npm/bin/npm-cli.js'
  ]
}
nvm is not compatible with the npm config "prefix" option: currently set to ""
Run `npm config delete prefix` or `nvm use --delete-prefix v14.4.0
--silent` to unset it.

Pointers/thoughts on how to resolve this would be useful.

thanks