Did you try verifying the game in Steam? If not, please give it a try and if you still get the crash please locate your last save file here: 

Documents\NeocoreGames\KA_KT\Users\76561197985981512\Save (the folder with the number is different on your end)

and attach it to an email sent to [email protected] (not the Autosave or the autocloud file but the one with a name like 'KA_KT_1612661708')


Thanks in advance!:)