So I had the technic launcher in the past, for about 3 or 4 years, and I would play it a lot on and off. I stopped playing it for a while and my computer auto updated to windows 10. When it did I felt the urge to play tekkit classic, so i start up the launcher and proceed to try and launch tekkit classic. When i got to the modpacks tab and pressed play on tekkit classic the launcher loaded and downloaded everything it needed to like normal, but after it was done downloading and installing everything the launcher disappeared as if the game was starting up but after a split second the launcher popped back up and never started the game. I tried downgrading my laptop back down to windows 8 to see if that helped but it didnt, so i let it upgrade back to 10 and then I tried deleting everything in the technic folders and re installing technic but that did help either.
I copied the log but have no idea what any of it means, if someone could help it would be very much appreciated.