Requrie stack error when using nginx and pm2

I am using WinSCP and Nginx to host my application but I keep on getting this error when I check the logs of pm2 I checked my WinSCP and it says it contains all folders so it doesn't seem to have anything missing

/home/***/.pm2/logs/server-error.log last 15 lines:
0|server   | Require stack:
0|server   | - /home/***/server.js
0|server   |     at Function.Module._resolveFilename (internal/modules/cjs/loader.js:880:15)
0|server   |     at Module.Hook._require.Module.require (/usr/lib/node_modules/pm2/node_modules/require-in-the-middle/index.js:61:29)
0|server   |     at require (internal/modules/cjs/helpers.js:88:18)
0|server   |     at Object.<anonymous> (/home/*****/server.js:8:22)
0|server   |     at Module._compile (internal/modules/cjs/loader.js:1063:30)
0|server   |     at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
0|server   |     at Module.load (internal/modules/cjs/loader.js:928:32)
0|server   |     at Function.Module._load (internal/modules/cjs/loader.js:769:14)
0|server   |     at Object.<anonymous> (/usr/lib/node_modules/pm2/lib/ProcessContainerFork.js:33:23)
0|server   |     at Module._compile (internal/modules/cjs/loader.js:1063:30) {
0|server   |   code: 'MODULE_NOT_FOUND',
0|server   |   requireStack: [ '/home/****/server.js' ]
0|server   | }

I am unsure of what the "require stack" error means and I am unsure of how to handle it. Can someone point me in the right direction? If you need more information please let me know.