Cannot find module './router'

[neo3689]

hey,
really new to this stuff but did a bit in school, also starting uni so really into it haha

so i downloaded node.js then ran the install.bat file and installed the package.json which installed successfully but then ran the run file and it says this,
C:\Users\james\Desktop>node app.js
node:internal/modules/cjs/loader:936
throw e
Error: Cannot find module './router'
Require stack:

• C:\Users\james\Desktop\app.js
  ←[90m at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)←[39m
  ←[90m at Function.Module._load (node:internal/modules/cjs/loader:778:27)←[39m
  ←[90m at Module.require (node:internal/modules/cjs/loader:999:19)←[39m
  ←[90m at require (node:internal/modules/cjs/helpers:102:18)←[39m
  at Object. (C:\Users\james\Desktop\app.js:2:24)
  ←[90m at Module._compile (node:internal/modules/cjs/loader:1097:14)←[39m
  ←[90m at Object.Module._extensions..js (node:internal/modules/cjs/loader:1149:10)←[39m
  ←[90m at Module.load (node:internal/modules/cjs/loader:975:32)←[39m
  ←[90m at Function.Module._load (node:internal/modules/cjs/loader:822:12)←[39m
  ←[90m at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)←[39m {
  code: ←[32m'MODULE_NOT_FOUND'←[39m,
  requireStack: [ ←[32m'C:\Users\james\Desktop\app.js'←[39m ]
  }

Node.js v17.3.0

what do i do from here.

thanks

[ghost]

re-download entire repo