Cant download the app for Mac

What I did: Can´t download the app

What happened: The app won’t open

What I expected: To get another version of agenda compatible with MacOS El Capitan

Things that might be helpful to know (Agenda version, OS and model, etc): Running MacOs el Capitan.

Unfortunately Agenda requires macOS 12 or higher, it won’t run (never has) on 10.11 I’m afraid.