My first account reached level 6. I was in a dungeon playing with a friend online when the game froze and crashed. I lost that character. 
Made a new character and reached level 17; explored a dungeon with a friend online and game froze and crashed again....(This is the only game this has happened with)

Path through C:drive navigating through my Users AppData and LocalCache to end up in "Dungeons" i was able to see the following items:

Folder: 2535469943404683 and Folder: Saved

I'm guessing my character information is saved in these folders along with a log report stating the errors that occurred.

Please advise if any additional information is needed,

Thank you,

Ronnie