Can't Open Modpacks?

[Arcane_Addict]

Whenever I try to open any modpack, including original technic modpacks, it begins installing the assets. Then the launcher closes and immediately reopens to the same page, though the installing assets bar has disappeared. How can I fix this?

[JaariAtmc]

Update your NVIDIA graphics card again, to a version that is later than 378.49.

[Arcane_Addict]

Log: http://pastebin.com/2Bu3v2kv

[Arcane_Addict]

Thank you so much