npm install -g @axerunners/axecore-node ERROR

[bihai123]

# npm install -g @axerunners/axecore-node

/usr/bin/axecore-node -> /usr/lib/node_modules/@axerunners/axecore-node/bin/axecore-node

> bufferutil@4.0.1 install /usr/lib/node_modules/@axerunners/axecore-node/node_modules/bufferutil
> node-gyp-build


> utf-8-validate@5.0.2 install /usr/lib/node_modules/@axerunners/axecore-node/node_modules/utf-8-validate
> node-gyp-build


> zeromq@5.1.0 install /usr/lib/node_modules/@axerunners/axecore-node/node_modules/zeromq
> node scripts/prebuild-install.js || (node scripts/preinstall.js && node-gyp rebuild)


prebuild-install WARN install EACCES: permission denied, access '/root/.npm'

fs.js:885
  return binding.mkdir(pathModule._makeLong(path),
                 ^

Error: EACCES: permission denied, mkdir '/usr/lib/node_modules/@axerunners/axecore-node/node_modules/zeromq/zmq'
    at Object.fs.mkdirSync (fs.js:885:18)
    at Object.<anonymous> (/usr/lib/node_modules/@axerunners/axecore-node/node_modules/zeromq/scripts/preinstall.js:90:8)
    at Module._compile (module.js:653:30)
    at Object.Module._extensions..js (module.js:664:10)
    at Module.load (module.js:566:32)
    at tryModuleLoad (module.js:506:12)
    at Function.Module._load (module.js:498:3)
    at Function.Module.runMain (module.js:694:10)
    at startup (bootstrap_node.js:204:16)
    at bootstrap_node.js:625:3
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! zeromq@5.1.0 install: `node scripts/prebuild-install.js || (node scripts/preinstall.js && node-gyp rebuild)`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the zeromq@5.1.0 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2019-08-22T03_52_28_143Z-debug.log