Jquery click events not working for certain events

Hi, this is related to the FCC Front End Project creating the calculator. I have created events related to the buttons pressed and most of them register the event but for certain events, they don’t seem to respond.

What I have done is check for any typos in “id” fields, tried this in another browser and searched on the web about if Jquery has a certain click events limit but not able to resolve the issue.

Here is the link to my codepen: [https://codepen.io/xguardx/pen/rGqrGw?editors=0010]

Basically events after line 49 don’t seem to register if the button is pressed. Appreciate your help! Thank you