Failed at the pdb_ng2@1.0.1 postinstall script 'typings install'.

$ npm install

> pdb_ng2@1.0.1 postinstall /home/ng-drupal/public_html/ngDrupal/modules/pdb/modules/pdb_ng2
> typings install

/home/ng-drupal/public_html/ngDrupal/modules/pdb/modules/pdb_ng2/node_modules/configstore/index.js:54
throw err;
^

Error: EACCES: permission denied, open '/root/.config/configstore/typings.json'
You don't have access to this file.

at Object.fs.openSync (fs.js:584:18)
at Object.fs.readFileSync (fs.js:491:33)
at Configstore.get (/home/ng-drupal/public_html/ngDrupal/modules/pdb/modules/pdb_ng2/node_modules/configstore/index.js:35:26)
at Configstore (/home/ng-drupal/public_html/ngDrupal/modules/pdb/modules/pdb_ng2/node_modules/configstore/index.js:28:44)
at Object. (/home/ng-drupal/public_html/ngDrupal/modules/pdb/modules/pdb_ng2/node_modules/typings-core/dist/utils/store.js:5:19)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)

npm ERR! Linux 4.8.0-36-generic
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install"
npm ERR! node v7.9.0
npm ERR! npm v4.2.0
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! pdb_ng2@1.0.1 postinstall: `typings install`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the pdb_ng2@1.0.1 postinstall script 'typings install'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the pdb_ng2 package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! typings install
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs pdb_ng2
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls pdb_ng2
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! /home/ng-drupal/.npm/_logs/2017-06-23T12_35_49_844Z-debug.log
ng-drupal@virtualmin:~/public_html/ngDrupal/modules/pdb/modules/pdb_ng2$