Plugin add error

[serkanr]

I cant add plugin to Cordova. I am receiving such an error

(node:8672) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Failed to fetch plugin https://github.com/jaeger25/Html5Video.git via registry.
Probably this is either a connection problem, or plugin spec is incorrect.
Check your connection and plugin name/version/URL.
Error: cmd: Command failed with exit code 4294963228 Error output:
npm ERR! addLocal Could not install C:\Users\SERKAN~1\AppData\Local\Temp\npm-8756-7b5fe9a8\git-cache-c7e275c6\c94259fc71ed245e1c6e1def7a0510e5c48e5581
npm ERR! Windows_NT 10.0.16299
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" "install" "https://github.com/jaeger25/Html5Video.git" "--production" "--save"
npm ERR! node v6.9.4
npm ERR! npm v3.10.10
npm ERR! code EISDIR
npm ERR! errno -4068
npm ERR! syscall read

npm ERR! eisdir EISDIR: illegal operation on a directory, read
npm ERR! eisdir This is most likely not a problem with npm itself
npm ERR! eisdir and is related to npm not being able to find a package.json in
npm ERR! eisdir a package you are trying to install.

npm ERR! Please include the following file with any support request:
npm ERR! D:\mobile-client\npm-debug.log