Help me to debug

Hi Freelancers,

I'm managing a complex web app based on Zend (PHP)

I'm able to make work a new feature on stage server but not on the live server.

I need somebody with a good experience on development to help me.
I need somebody able to read code in a MVC structure confortable with VS code, git, etc...

If you are able to help me please contact me.

Raphaël