https://bugs.winehq.org/show_bug.cgi?id=42909
--- Comment #5 from winetest@luukku.com --- Reinstall the game in fresh wineprefix. Start it after install. Quit it, then try to relaunch from the game directory. If it doesnt start attach the log.
I am not familiar with those exports, but just wine game.exe should be enough.
$ wine '/mnt/data/wine.hitman3/drive_c/GOG Games/Hitman - Contracts/HitmanContracts.exe'
Might not work. It's always better to cd into the game directory.