The infolog claims there's likely a problem with your graphics driver, so you may want to try different versions than the 546.17 Nvidia driver in case that is causing the problem.
This stacktrace indicates a problem with your graphics card driver, please try upgrading it. Specifically recommended is the latest version; do not forget to use a driver removal utility first.
Another option is to try resetting your previously working ZK install back to the default settings and widgets and see if that will finish loading.
From your ZK install folder:
To reset your lobby settings, you can rename or remove the 'LuaMenu' folder
To reset the in-game widgets and settings, rename or remove the 'LuaUI' folder
The game will create new folders in their place with the default settings applied.