What do you mean by "can't proceed"? The story doesn't continue, or you can't solve the riddle?
OK then could you please send me the save? there are numbered files corresponding to each save game slot and pages, so page 1 slot 5 is 1-5-LT1.save, page 2 slot 3 is 2-3-LT1.save, and so on.
You can find the saves in the "game/saves" subfolder in the installation directory
You can email them to me directly at