Error install bclient

[BioComSoftware]

I'm opening this issue because:

• npm is crashing.

What's going wrong?

bcoin@CryptoTED-devel-signature:/var/Coinygram-Sig$ npm install bclient
npm ERR! cb() never called!

npm ERR! This is an error with npm itself. Please report this error at:
npm ERR!     <https://github.com/npm/npm/issues>

How can the CLI team reproduce the problem?

# cd /var
# mkdir <APPNAME>-Sig
# chown <USER>:<GROUP> <APPNAME>-Sig/
# chmod 775 <APPNAME>-Sig/
# su <USER>
(<USER>)$ cd <APPNAME>-Sig
(<USER>)$ npm init

This utility will walk you through creating a package.json file.
It only covers the most common items, and tries to guess sensible defaults.

See \`npm help json` for definitive documentation on these fields
and exactly what they do.

Use \`npm install <pkg>` afterwards to install a package and
save it as a dependency in the package.json file.

Press ^C at any time to quit.
package name: (<APPNAME>-sig)
version: (1.0.0)
description: Verifies the signature of incoming requests
entry point: (index.js) signature.js
test command:
git repository: https://git.<path>/<APPNAME>-Sig.git
keywords:
author: Mike Rightmire
license: (ISC)
About to write to /var/<APPNAME>-Sig/package.json:

{
  "name": "<APPNAME>-sig",
  "version": "1.0.0",
  "description": "Verifies the signature of incoming requests",
  "main": "signature.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "https://git.<path>/<APPNAME>-Sig.git"
  },
  "author": "Mike Rightmire",
  "license": "ISC"
}


Is this OK? (yes) yes

(<USER>)$ npm install express --save

npm notice created a lockfile as package-lock.json. You should commit this file.
+ express@4.16.3
added 50 packages from 47 contributors and audited 119 packages in 4.256s
found 0 vulnerabilities

(<USER>)$ vi signature.js

const express = require('express')
const app = express()

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(3000, () => console.log('Example app listening on port 3000!'))

(test)
(<USER>)$ node signature.js

Example app listening on port 3000!

(In new window)

(<USER>)$ elinks http://localhost:3000/

Hello World!

supporting information:

• npm -v prints:
  6.1.0

• node -v prints:
  v8.11.2

• npm config get registry prints:
  https://registry.npmjs.org/

• Windows, OS X/macOS, or Linux?:
  Linux CryptoTED-devel-signature 3.16.0-5-amd64 bin requires filename #1 SMP Debian 3.16.51-3+deb8u1 (2018-01-08) x86_64 GNU/Linux

PRETTY_NAME="Debian GNU/Linux 8 (jessie)"
NAME="Debian GNU/Linux"
VERSION_ID="8"
VERSION="8 (jessie)"
ID=debian
HOME_URL="http://www.debian.org/"
SUPPORT_URL="http://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
2018-06-01T07_13_53_903Z-debug.log