user@host:~/insight-api$ npm install
npm WARN engine bitcore@0.1.41: wanted: {"node":">=0.10 <=0.10.40"} (current: {"node":"0.10.48","npm":"2.15.1"})
npm ERR! Linux 4.19.0-6-amd64
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install"
npm ERR! node v0.10.48
npm ERR! npm  v2.15.1
npm ERR! path /home/user/insight-api/node_modules/bitcore/node_modules/.bin/brfs
npm ERR! code EACCES
npm ERR! errno 3

npm ERR! Error: EACCES, unlink '/home/user/insight-api/node_modules/bitcore/node_modules/.bin/brfs'
npm ERR!  { [Error: EACCES, unlink '/home/user/insight-api/node_modules/bitcore/node_modules/.bin/brfs']
npm ERR!   errno: 3,
npm ERR!   code: 'EACCES',
npm ERR!   path: '/home/user/insight-api/node_modules/bitcore/node_modules/.bin/brfs' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! error rolling back Error: EACCES, unlink '/home/user/insight-api/node_modules/bitcore/node_modules/.bin/brfs'
npm ERR! error rolling back  { [Error: EACCES, unlink '/home/user/insight-api/node_modules/bitcore/node_modules/.bin/brfs']
npm ERR! error rolling back   errno: 3,
npm ERR! error rolling back   code: 'EACCES',
npm ERR! error rolling back   path: '/home/user/insight-api/node_modules/bitcore/node_modules/.bin/brfs' }

npm ERR! Please include the following file with any support request:
npm ERR!     /home/user/insight-api/npm-debug.log