Cannot find module '/root/.pm2/node_modules/pm2-webshell/package.json'

[T0T4R4]

This error is thrown when trying to install pm2-webshell

.Error: Cannot find module '/root/.pm2/node_modules/pm2-webshell/package.json'
at Function.Module._resolveFilename (module.js:527:15)
at Function.Module._load (module.js:476:23)
at Module.require (module.js:568:17)
at require (internal/module.js:11:18)
at startModule (/usr/local/lib/node_modules/pm2/lib/API/Modules/Modularizer.js:33:22)
at /usr/local/lib/node_modules/pm2/lib/API/Modules/Modularizer.js:158:9
at /usr/local/lib/node_modules/pm2/lib/Configuration.js:64:14
at FSReqWrap.oncomplete (fs.js:136:15)