Reactネイティブでライブラリをインストールしたい

ReactNative使用中に、stackなどのライブラリをインストールしようとしたところ、
このようなエラーが出てしまい困っています。。

していさきのURL にとんだらとんでもない量のエラー文？が出てきて焦ってます。、

なにが原因なのでしょうか、、

npm install @react-navigation/stack                                                        npm ERR! code ENOTFOUND
npm ERR! errno ENOTFOUND
npm ERR! network request to https://registry.npmjs.org/@react-navigation%2fstack failed, reason: getaddrinfo ENOTFOUND registry.npmjs.org
npm ERR! network This is a problem related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network 
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/user/.npm/_logs/2020-09-20T12_06_59_011Z-debug.log
user@fukusyun-2 shop-review-app % npm install @react-navigation/bottom-tabs

npm ERR! Cannot read property 'match' of undefined

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/user/.npm/_logs/2020-09-20T12_08_20_527Z-debug.log



 % npm install @react-navigation/bottom-tabs

npm ERR! Cannot read property 'match' of undefined

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/user/.npm/_logs/2020-09-20T12_10_10_528Z-debug.log
user@fukusyun-2 shop-review-app % npm install @react-navigation/stack      

npm ERR! Cannot read property 'match' of undefined

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/user/.npm/_logs/2020-09-20T12_10_50_537Z-debug.log
user@fukusyun-2 shop-review-app % npm install @react-navigation/bottom-tabs

npm ERR! Cannot read property 'match' of undefined

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/user/.npm/_logs/2020-09-20T12_10_54_858Z-debug.log