Thanks for the save! Unfortunately it seems a new error occurs when I'm by the lava and start to Ash-walk. This time the game did not freeze with the hourglass instead i'm stuck on the spot, when using the dagger on the weed nothing happens, and when I try to walk left or right i get nowhere except tani switch position 1 pixel to the left or right.
I made a save from when I'm stuck in ash-walk in case that could help.