I cannot download it [1.14.4]

[Former user]

I cannot download it, when i open it nothing happends

[Requios]

You can’t ‘play’ the jar version that you downloaded, it needs to be installed as a mod in Minecraft. Check here on how to do that: https://help.twitch.tv/s/article/How-to-Play-Minecraft-with-Twitch-App?language=en_US