Mac Os 10.9 5 To High Sierra. Web macos 10.13 high sierra. See where is says software, it says os x 10.9.5 which is mavericks and that's why you can't get indesign to install.
Web the mac must also be using macos high sierra or later, the latest version of macos sierra or the latest version of os x el capitan. Introduced in september 2017, macos 10.13 high sierra brought new updates to the photos and safari apps. Then, a series of minor.