Modpack doesnt load and goes back to Technic Laucher

[EgglooTTV]

Hello! So I am having some issues trying to load my new modpack I have created. I followed every step and installed the modpack on the Technic Launcher. I press play and it says "Installing minecraft assets" then closes the launcher like its going to launch the game but almost immediately goes back to the technic launcher. If anyone could help me with this it would be greatly appreciated! Minecraft Crash Log - Pastebin.com