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Describe the crash
I tried launching the game through Twitch, it took me to the launcher, and as soon as I press "play" it crashes. No loading screen or anything.

To Reproduce

1. Launch modpack through Twitch desktop app, will redirect to the MC launcher.
2. Select "play" in the MClauncher.
3. Should take a few seconds, but it crashes almost immediately.

Crash Log
No link or log.

Info (please complete the following information):

• Modpack Version: 2.77.1
• Server or Singleplayer: Singleplayer
• Version the world was created on: 1.12.2

Additional context
Before I got the modpack through the Twitch app, I had to install everything manually, so this is the first time trying to launch it from the desktop app. I don't know how much of a difference it makes. When I try to launch it from the MC launcher without going to Twitch first, it launches the previous version of the modpack and it actually loads and is playable.