env file missing from modules

When i run my react app, i get an error saying .env file does not exist, even thought i have a .env file.

This is how the error looks

> [email protected] start
> node bin/www

node:internal/modules/cjs/loader:1093
  throw err;
  ^

Error: Cannot find module 'dotenv'
Require stack:
- C:UsersBrugerDownloadslandrup-dans-api-mainlandrup-dans-api-mainbinwww
    at Module._resolveFilename (node:internal/modules/cjs/loader:1090:15)
    at Module._load (node:internal/modules/cjs/loader:934:27)
    at Module.require (node:internal/modules/cjs/loader:1157:19)
    at require (node:internal/modules/helpers:119:18)
    at Object.<anonymous> (C:UsersBrugerDownloadslandrup-dans-api-mainlandrup-dans-api-mainbinwww:2:1)
    at Module._compile (node:internal/modules/cjs/loader:1275:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1329:10)
    at Module.load (node:internal/modules/cjs/loader:1133:32)
    at Module._load (node:internal/modules/cjs/loader:972:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:83:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    'C:\Users\Bruger\Downloads\landrup-dans-api-main\landrup-dans-api-main\bin\www'
  ]
}

Node.js v19.8.1```