ReactJS [issue on production] - TypeError: (void 0) is not a functionBug

[mahendrakulkarni177]

I'm facing the above error on production build, not even getting the issue reference... your help will really be appreciated, Thanks in advance.

Note - on local, it works fine - development mode, but the same code won't work on a production.
React js version is - 16.12.0, and webpack version - 4.41.6

Also tried to downgrade the versions still getting the same error

Also, this above error getting on click ok fabric dropdown... can you please help me out to solve this issue.