I am following the instructions on the the website for installing a full node. this is the error i am getting.
npm WARN deprecated graceful-fs@3.0.8: graceful-fs v3.0.0 and before will fail on node releases >= v7.0. Please update to graceful-fs@^4.0.0 as soon as possible. Use ‘npm ls graceful-fs’ to find it in the tree.
npm ERR! git submodule -q update --init --recursive: No submodule mapping found in .gitmodules for path 'support/web-socket-js’
npm ERR! git submodule -q update --init --recursive:
npm ERR! git submodule -q update --init --recursive: No submodule mapping found in .gitmodules for path 'support/web-socket-js’
npm ERR! git submodule -q update --init --recursive:
npm ERR! git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8: Cloning into bare repository ‘/home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8’…
npm ERR! git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8: Warning: Permanently added the RSA host key for IP address ‘192.30.252.128’ to the list of known hosts.
npm ERR! git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8: Permission denied (publickey).
npm ERR! git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8: fatal: Could not read from remote repository.
npm ERR! git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8:
npm ERR! git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8: Please make sure you have the correct access rights
npm ERR! git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8: and the repository exists.
npm ERR! Linux 3.13.0-86-generic
npm ERR! argv “/usr/local/bin/node” “/usr/local/bin/npm” “install” “-g” "bitcore"
npm ERR! node v5.10.0
npm ERR! npm v3.8.5
npm ERR! code 128
npm ERR! Command failed: git clone --template=/home/kreshendo/.npm/_git-remotes/_templates --mirror git@github.com:bitpay/engine.io-client.git /home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8
npm ERR! Cloning into bare repository ‘/home/kreshendo/.npm/_git-remotes/git-github-com-bitpay-engine-io-client-git-bitpay-1-5-4-534e88e8’…
npm ERR! Warning: Permanently added the RSA host key for IP address ‘192.30.252.128’ to the list of known hosts.
npm ERR! Permission denied (publickey).
npm ERR! fatal: Could not read from remote repository.
npm ERR!
npm ERR! Please make sure you have the correct access rights
npm ERR! and the repository exists.
npm ERR!
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR! https://github.com/npm/npm/issues
npm ERR! Please include the following file with any support request:
npm ERR! /home/kreshendo/npm-debug.log
how do i fix this?