The errors I got were similar "action number 1" errors; I can't grab the exact message for the first one, but it triggered after falling down the pit outside of Rory's house when trying to talk to the creature down there. Something about "last day" in the crash message.
On a second run I initially talked to the rat in the basement and couldn't leave past the fountain to the screen with the strawberry. After restarting for a third attempt I picked up the jam ahead of time but once I tried talking to the rat again I got an error reading "could not find node "Reggie the rat got jame".