Cant get launcher to launch any mod packs

[markofmastery]

whenever i try to launch a modpack the game will not start. its icon will appear on my taskbar but will not show anything if clicked on or alt-tabbed into. command prompt says there in numerous missing files. Tried launching vanilla through the launcher as a test and it worked fine. Have tried uninstalling technic and the modpacks themselves, including deleting the folders they were stored in to no effect.

Command  Prompt pastebin : https://pastebin.com/F44gUhuy