I can load the save. It's from the start of chapter 6.
It just occured to me that you probably have run out of local storage in the Chrome browser. You must free some storage in that case. Off the top of my head, I can't tell you exactly how since I never done it myself, but search around.
You could press f12 and have Console selected. See what it says when you load a save. I'm not sure what it will say, if anything, if the problem is the local storage, but maybe it will tell you what the problem is.
Try to load the save in Firefox, or any other browser than Chrome, and it will work if I'm right about local storage.