Minecraft Modpack Skyfactory 3 startup problems?

I need help launching the modpack Skyfactory 3. I use the Twitch Launcher and I can easily download the modpack. But when I'm in the Minecraft launcher and press play the error message "Crash crashes." How can I fix it?

Try an older version, if you use the latest one.

How do you mean?

Install an older version of Skyfactory 3 in Twitch Launcher and try again.

The problem is that I want to play with 2 other friends on a server, and need the latest version.

But thanks anyway!

Mhh, that is stupid indeed

By the way, no modpack works!

I just tried it