Branching out as a new discussion.
Which version of Adobe After effects you are looking to install? What is the operating system of your machine where you would like to install it?
What type of Adobe Creative Cloud subscription do you have?
Awaiting your response.
1. Download Creative cloud desktop application.
2. Run the downloaded Creative cloud launcher file on your computer and it will install.
3. Once done, you can sign in on Creative cloud application and under Apps panel, you will find the applications to install.
i paid for adobe and downloaded the creative cloud app but its says trial or buy now