Decompyling pyc file and adding a function to the code

Hey people
So I had a working software I purchased from a dev more then a year ago, but the site it operates on added cloudflare captcha upon visiting. not an issue, it's just an extra couple lines of codes and everything goes back to normal.

But here's the thing: I only have the python exe and not the source code. I have some programming experience and thanks to that was able to get the pyc file out of the python exe. However, not all python decompylers work as it depends on the version of py the original software was written with. There's a decompyler that works for all version but I'm not able with it as it requires some c++, experience.

Anyway, I'm offering $200 to anyone who can decompyle the pyc file and add the cloudflare captcha code needed the get the software back running. If anyone's up to it, do let me know!

....following...

Do you know which Python version was used to compile the .pyc file?
Knowing that would make decompiling and adding a function much easier.