Ember UI not loading

Ember UI is not loading on staging env with below error message in the console

vendor-fc7ff223306b879e26e5fb5c6862cc79.js:2693 Uncaught TypeError: e.indexOf is not a function
    at De (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:2693)
    at n.property (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:2709)
    at Le (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:2727)
    at vendor-fc7ff223306b879e26e5fb5c6862cc79.js:4507
    at Array.reduce (<anonymous>)
    at s.callback (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:4507)
    at s.exports (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:18)
    at s._reify (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:21)
    at s.reify (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:20)
    at s.exports (vendor-fc7ff223306b879e26e5fb5c6862cc79.js:17)

I am clueless what could cause this and it not reproducible locally. As it is working fine locally.

But when I open the UI in staging it gives me a blank page and above error message in the console.