I try to install the latest version of nodebb, I run

./nodebb setup

unfortunate I face errors message

Dependencies outdated or not yet installed.
Installing them now...

npm ERR! code 128
npm ERR! An unknown git error occurred
npm ERR! command git --no-replace-objects ls-remote ssh://[email protected]/Mango/emitter.git
npm ERR! Could not create directory '/home/nodebb/.ssh'.
npm ERR! Failed to add the host to the list of known hosts (/home/nodebb/.ssh/known_hosts).
npm ERR! [email protected]: 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! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2022-03-12T11_38_10_416Z-debug-0.log
Error installing dependencies!
message: Command failed: npm install --production
stdout: null
stderr: null
/var/www/nodebb/src/cli/package-install.js:82
                throw e;
                ^

Error: Command failed: npm install --production
    at checkExecSyncError (node:child_process:828:11)
    at Object.execSync (node:child_process:902:15)
    at Object.installAll (/var/www/nodebb/src/cli/package-install.js:73:9)
    at Object.<anonymous> (/var/www/nodebb/src/cli/index.js:62:18)
    at Module._compile (node:internal/modules/cjs/loader:1103:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1155:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:102:18) {
  status: 128,
  signal: null,
  output: [ null, null, null ],
  pid: 3320,
  stdout: null,
  stderr: null
}

any solutions