Renewable subscription packages will be added to my ios application -- 2

Hello, I have a mobile app code for ios. There are in-app renewable subscription packages currently available in this app. The user must be a member of the subscription packages in order to work in the application. However, the existing subscription code inside is working incorrectly as it is old and full of errors. I want you to remove existing subscription code in this app and install renewable subscription packages from scratch. These subscription packages should be weekly, monthly and yearly.