Won't start

[LaganYT]

 npm run start

node-web-radio@1.0.2 start
node index.js

node:internal/modules/cjs/loader:936
throw err;
^

Error: Cannot find module 'express'
Require stack:

• /home/runner/node-web-radio/index.js
  at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)
  at Function.Module._load (node:internal/modules/cjs/loader:778:27)
  at Module.require (node:internal/modules/cjs/loader:1005:19)
  at require (node:internal/modules/cjs/helpers:102:18)
  at Object. (/home/runner/node-web-radio/index.js:1:25)
  at Module._compile (node:internal/modules/cjs/loader:1101:14)
  at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
  at Module.load (node:internal/modules/cjs/loader:981:32)
  at Function.Module._load (node:internal/modules/cjs/loader:822:12)
  at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/home/runner/node-web-radio/index.js' ]
  }
  exit status 1
  

[LykCloud]

run
npm i
or
npm i express