Gulp config prm throws an error Cannot find module 'gulp-webp-css' can't find the reason?

Question

JavaScript

https://codepen.io/ilyaaa/pen/qBadRNp?editors=1010

Cannot find module 'gulp-webp-css' -code
C:\Users\Lenovo\Desktop\my files\my projects\Shop Site\fls-gulp >
C:\Users\Lenovo\Desktop\my files\my projects\Store Site\fls-gulp>gulp
Error: Cannot find module 'gulp-webpcss'
Require stack:
- C:\Users\Lenovo\Desktop\my files\ my projects\Shop Site\fls-gulp\gulpfile.js
- C:\Users\Lenovo\AppData\Roaming\npm\node_modules\gulp-cli\lib\shared\require-or-import.js
- C:\Users\ Lenovo\AppData\Roaming\npm\node_modules\gulp-cli\lib\versioned\^4.0.0\index.js
- C:\Users\Lenovo\AppData\Roaming\npm\node_modules\gulp-cli\index.js
- C:\Users\Lenovo\AppData\Roaming\npm\node_modules\gulp-cli\bin\gulp.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15)
at Function.Module._load (internal/modules/cjs/loader.js:725:27)
at Module.require (internal/modules /cjs/loader.js:952:19)
at require (internal/modules/cjs/helpers.js:88:18)
at Object. (C:\Users\Lenovo\Desktop\my files\my projects\Shop Site\fls-gulp\gulpfile.js:44:14)
at Module._compile (internal/modules/cjs/loader.js:1063:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
at Module.load (internal/modules/cjs/loader.js:928:32)
at Function.Module._load( internal/modules/cjs/loader.js:769:14)
at Module.require (internal/modules/cjs/loader.js:952:19) {
code: 'MODULE_NOT_FOUND',
requireStack: [
'C:\\Users\\Lenovo\\Desktop\\my files\\my projects\\Store Site\\fls-gulp\\gulpfile.js',
'C:\\ Users\\Lenovo\\AppData\\Roaming\\npm\\node_modules\\gulp-cli\\lib\\shared\\require-or-import.js',
'C:\\Users\\Lenovo\\AppData \\Roaming\\npm\\node_modules\\gulp-cli\\lib\\versioned\\^4.0.0\\index.js',
'C:\\Users\\Lenovo\\AppData\\Roaming\\ npm\\node_modules\\gulp-cli\\index.js',
'C:\\Users\\Lenovo\\AppData\\Roaming\\npm\\node_modules\\gulp-cli\\bin\\gulp.js '
]
}

C:\Users\Lenovo\Desktop\my files\my projects\Shop Site\fls-gulp>