npm install error: unable to access 'https://git.mdboot

Got the token, followed the step 4 in https://mdbootstrap.com/docs/angular/getting-started/quick-start/, did npm install with the token.

Got error: fatal: unable to access 'https://git.mdbootstrap.com/mdb/angular/ng-uikit-pro-standard.git/': SSL certificate problem: unable to get local issuer certificate

**0 info it worked if it ends with ok

1 verbose cli [1 verbose cli 'C:\Program Files\nodejs\node.exe',1 verbose cli 'C:\Users\XHuang\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js',1 verbose cli 'install',1 verbose cli 'git+https://oauth2:PRIVATE_TOKEN@git.mdbootstrap.com/mdb/angular/ng-uikit-pro-standard.git',1 verbose cli '--save'1 verbose cli ]2 info using npm@6.13.03 info using node@v12.13.04 verbose npm-session c2caf37dcbc289af5 silly install loadCurrentTree6 silly install readLocalPackageData7 silly fetchPackageMetaData error for git+https://oauth2:PRIVATE_TOKEN@git.mdbootstrap.com/mdb/angular/ng-uikit-pro-standard.git Error while executing:7 silly fetchPackageMetaData D:\Git\cmd\git.EXE ls-remote -h -t https://oauth2:PRIVATE_TOKEN@git.mdbootstrap.com/mdb/angular/ng-uikit-pro-standard.git7 silly fetchPackageMetaData7 silly fetchPackageMetaData fatal: unable to access 'https://git.mdbootstrap.com/mdb/angular/ng-uikit-pro-standard.git/': SSL certificate problem: unable to get local issuer certificate7 silly fetchPackageMetaData7 silly fetchPackageMetaData exited with error code: 1288 timing stage:rollbackFailedOptional Completed in 1ms9 timing stage:runTopLevelLifecycles Completed in 7080ms10 verbose stack Error: exited with error code: 128**