are you trying to load the game in proper location? also try loading the save file in v8 if you get same error then your save file got corrupted and you'll have to use backups
are you sure that you're posting right save file? because in the one that you have provided you aren't stuck. Could you please upload your Game.rxdata not Game(2).rxdata
you're not stuck, you just need to complete the puzzle (you can still lower the water in your current location)
@S.paul @Alphagar
Please refrain from posting in this thread if you're not actually helping
Game.rxdata