B42 black screen and crash, some possible solutions.
1 - Unsubscribe from all your mods.
2 - Delete the "Zomboid" folder in: C:\Users\"Your username".
3 - Reinstall the game.
4 - Check the files via Steam.
5 - Open in windowed mode.
6 - Clear your video driver's shader cache.
7 - Update your video driver.
8 - Lower the graphics settings and disable the graphics settings of the video driver to avoid incompatibilities.
9 - Use alternate launcher. (In Steam: Properties > General > Boot Options selected)
Have a good game.