Getting error during ionic serve

This is my error log. I tried to install node-sass but it showing it already in your node-modules folder

Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (57)
For more information on which environments are supported please see:

at module.exports (D:\Tata_Mobile\TataWorking\TATA-CMS-APP-1.1\node_modules\node-sass\lib\binding.js:13:13)
at Object. (D:\Tata_Mobile\TataWorking\TATA-CMS-APP-1.1\node_modules\node-sass\lib\index.js:14:35)
at Module._compile (module.js:635:30)
at Object.Module._extensions…js (module.js:646:10)
at Module.load (module.js:554:32)
at tryModuleLoad (module.js:497:12)
at Function.Module._load (module.js:489:3)
at Module.require (module.js:579:17)
at require (internal/module.js:11:18)
at Object. (D:\Tata_Mobile\TataWorking\TATA-CMS-APP-1.1\node_modules@ionic\app-scripts\dist\core\bundle-components.js:6:16)

What is your ionic info?

You are probably using the latest node, which is not yet supported. Use the LTS.