[Client] Alpha Client Bug

Alright so i open my client right? I click on "Update Client" and I press that, it does its thing. Then I press play. Nothing opens. So I search everything I could on YouTube but nothing says about it other than Repair and Uninstall. I did all of those steps. Repair doesn't work. Uninstall does work but it only allows me to do the updated client for 1 day. So I have to stick with the Legacy client which I don't really like because there is no Practice Tool. I don't know if you guys can help me with this or not.. So like I said, trying to update client, works, press play doesn't open, and uninstall = 1 day of updated client. And you may be thinking, why cant you uninstall league every single day so you can play on the Updated client. NO I AM NEVER GOING TO DO THAT. If you guys can like do something about this, that'll be pretty nice. Thanks for reading!