Getting errors in function after enabling function pack

[ramandeep-singh-1983]

My Azure function was working fine. I followed the instructions and installed azure-functions-pack and now i get the following error in the function log when i access it:

2018-09-18T09:56:53 Welcome, you are now connected to log-streaming service. 2018-09-18T09:56:57.156 [Info] Function started (Id=845c970a-f992-4000-8f9d-76ab41b5f670) 2018-09-18T09:56:57.265 [Error] Exception while executing function: Functions.GetImages. mscorlib: One or more errors occurred. TypeError: Object.entries is not a function at addConstants (D:\home\site\wwwroot\.funcpack\index.js:76905:10) at Object.<anonymous> (D:\home\site\wwwroot\.funcpack\index.js:76923:1) at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30) at Object.module.exports.__webpack_exports__.a (D:\home\site\wwwroot\.funcpack\index.js:75988:69) at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30) at Object.module.exports.__webpack_exports__.a (D:\home\site\wwwroot\.funcpack\index.js:75970:71) at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30) at Object.module.exports.Object.defineProperty.value (D:\home\site\wwwroot\.funcpack\index.js:75925:14) at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30) at Object.module.exports.module.exports.context.res (D:\home\site\wwwroot\.funcpack\index.js:34444:20). 2018-09-18T09:56:57.281 [Error] Function completed (Failure, Id=845c970a-f992-4000-8f9d-76ab41b5f670, Duration=120ms)

I deleted node_modules directory from the function folder through the Kudu console and still getting this error. Am i missing something?