Change and update Instagram API in my code

Hello guys, I have PHP script that work with a lot of Instagram users (the users is on the database) and it make auto Likes, Follow and Comments from them. Half from the Instagram accounts already not work but have 40% that still work and I've checked it with myself, but in the script when I try to get Likes, Follow or Comments from them it not work, it because the Instagram API in the script is so old. I need you to update the Instagram API in the script and make sure that the script is work perfect and I can get Likes, Follow or Comments from the Instagram accounts in my database. The script is really easy and uncomplicated, if you are an expert and you know what you are doing, you can finish this project within 6 hours max.