MCD Launcher - Failed to install game

I bought Minecraft Dungeons - Ultimate Edition for Minecraft launcher yesterday and it worked fine. Today I logged in and saw a button saying Repair. I clicked it multiple times over a time period of 30 minutes. Every time it would say Game not repaired. So I uninstalled it and tried to re-install it but the same thing "Game not installed, action interrupted or not completed.". Please help me, I don't have a lot of money so this was a big purchase for me. Thanks in advance.