latest.log

Hi! Sorry about that.

Without crashlog I don't know if I could do anything, are you sure there is nothing? Even in your installation folder (in case where there are more than one log file, don't know...)

By the way, I see that you are using the ATLauncher, KeepMyKeys does not have support for looking for existing Minecraft installations with ATLauncher, be assured that I've added it to my todo list :) (It will still work if you have Minecraft vanilla or CurseForge though).