Update Google API Script

Hello I have a simple script that was written in PHP that uses the google ads api to retrieve the daily spend of each ad group. Everything was working perfectly until I started getting errors that I needed to update to the most recent version of the API.

This project is for someone to install the most recent version of the API and update the script to use the new API without error.

Server: Godaddy VPS with CPANEL & WHM
Script: PHP