error with socket.io

[EBugYT]

Hello please help me

error is
Error: Cannot find module 'socket.io'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (/home/ebugyt/Downloads/WebCraft-master/server.js:22:14)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)

[SmilerRyan]

From this message, it seems you haven't installed socket.io and other dependencies.
Make sure to run npm install before starting node server.js, and it should start correctly.