Hey Guys,
I tried to play a modpack with a friend and yeah.. it want's to start but then i'm in the technic launcher again.
He said that i should try to open vanilla minecraft in the techniclauncher and check if it's the modpack that makes the problem but no.
There is not a single modpack that i can start.
logs: https://pastebin.com/XZTGAcnC
i hope that u can help!