Need help to resolve this error: Error: Cannot find module '/opt/render/project/src/server.js

Need help to resolve this error: Error: Cannot find module '/opt/render/project/src/server.js

node:internal/modules/cjs/loader:1146
  throw err;
  ^
Error: Cannot find module '/opt/render/project/src/server.js'
    at Module._resolveFilename (node:internal/modules/cjs/loader:1143:15)
    at Module._load (node:internal/modules/cjs/loader:984:27)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:135:12)
    at node:internal/main/run_main_module:28:49 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}

this is my package.json:

{
  "name": "mern-goal-app",
  "version": "1.0.0",
  "description": "GoalSetterAPP",
  "main": "server.js",
  "scripts": {
    "start": "node backend/server.js",
    "server": "nodemon backend/server.js",
    "client": "npm start --prefix frontend",
    "dev": "concurrently \"npm run server\" \"npm run client\""
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "bcryptjs": "^2.4.3",
    "colors": "^1.4.0",
    "cross-env": "^7.0.3",
    "dotenv": "^16.4.5",
    "express": "^4.19.2",
    "express-async-handler": "^1.2.0",
    "jsonwebtoken": "^9.0.2",
    "mongoose": "^8.4.0"
  },
  "devDependencies": {
    "concurrently": "^8.2.2",
    "nodemon": "^3.1.0"
  }
}

there is NO SRC FOLDER in my backend repo. I have also export my env variable but no success.
Screenshot 2024-06-06 at 2.54.41 AM