npm command not working when trying to run

This is the error is get when i try to run 'npm run dev'

> portfolio@0.1.0 dev> next dev/home/aksh/Visual Studio Code/Web Dev/portfolio/node_modules/next/dist/lib/picocolors.js:134const { env, stdout } = ((_globalThis = globalThis) == null ? void 0 : _globalThis.process) ?? {};                                                                                             ^SyntaxError: Unexpected token '?'    at wrapSafe (internal/modules/cjs/loader.js:915:16)    at Module._compile (internal/modules/cjs/loader.js:963:27)    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)    at Module.load (internal/modules/cjs/loader.js:863:32)    at Function.Module._load (internal/modules/cjs/loader.js:708:14)    at Module.require (internal/modules/cjs/loader.js:887:19)    at Module.mod.require (/home/aksh/Visual Studio Code/Web Dev/portfolio/node_modules/next/dist/server/require-hook.js:65:28)    at require (internal/modules/cjs/helpers.js:74:18)    at Object.<anonymous> (/home/aksh/Visual Studio Code/Web Dev/portfolio/node_modules/next/dist/build/output/log.js:55:21)    at Module._compile (internal/modules/cjs/loader.js:999:30)

How do I solve this issue?