How to solve this issue when run react app ?

Question

I work on react App when I run it I get error 

I dont know this error on which place and how to solve it

so can any one help me please ?

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

D:\ReactApp>cd client-app/

D:\ReactApp\client-app>npm start

> [email protected] start D:\ReactApp\client-app
> react-scripts start

Starting the development server...

events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: spawn powershell ENOENT
←[90m    at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)←[39m
←[90m    at onErrorNT (internal/child_process.js:456:16)←[39m
←[90m    at processTicksAndRejections (internal/process/task_queues.js:80:21)←[39m
Emitted 'error' event on ChildProcess instance at:
←[90m    at Process.ChildProcess._handle.onexit (internal/child_process.js:270:12)←[39m
←[90m    at onErrorNT (internal/child_process.js:456:16)←[39m
←[90m    at processTicksAndRejections (internal/process/task_queues.js:80:21)←[39m {
  errno: ←[33m-4058←[39m,
  code: ←[32m'ENOENT'←[39m,
  syscall: ←[32m'spawn powershell'←[39m,
  path: ←[32m'powershell'←[39m,
  spawnargs: [
    ←[32m'-NoProfile'←[39m,
    ←[32m'-NonInteractive'←[39m,
    ←[32m'–ExecutionPolicy'←[39m,
    ←[32m'Bypass'←[39m,
    ←[32m'-EncodedCommand'←[39m,
    ←[32m'UwB0AGEAcgB0ACAAIgBgACIAaAB0AHQAcAA6AC8ALwBsAG8AYwBhAGwAaABvAHMAdAA6ADMAMAAwADAAYAAiACIA'←[39m
  ]
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Ahmed-Salah\AppData\Roaming\npm-cache\_logs\2020-09-25T14_46_14_041Z-debug.log

D:\ReactApp\client-app>