The crash report is hidden in a Temp folder in Appdata Local, you can easily access it through this (Windows 11)

1* C:\Users\<My Documents>\AppData\Local\Temp\keepherdev\Dungeon Keep Her\Crashes
2* in search box type %appdata then navigate through Local -> Temp ->keepherdev -> Dungeon Keep Her -> Crashes
From VASD: <device name>Itch.io/dungeon-keep-her/.itch/temp/keepherdev/Dungeon Keep Her/Crashes

the main crash file is a DMP, you wont be able to read it but its best to upload the "Folder" to a bug reporting page, besure to compress it (Like Winrar or 7zip) and upload it there for the dev(s) to see.

Didn't find something in local\temp, but in Appdata\LocalLow is a player.log. Would this help too, since it can be opened with a text editor and it shows another location for a crash report: <device name>Itch.io/dungeon-keep-her/.itch/temp/keepherdev/Dungeon Keep Her/Crashes. Though it seems there is nothing too, even with hidden files shown

Mine was a direct download so it wouldn't have been an itch.io thing for me, 

but they seem like they are in the  same place none the less,

however, I'm not sure what the difference is from player.log or player.dmp, but if both (or one of the other) exists, maybe share that on discord/here for Keepherdev to see