A Question on Tolman's Records

!​!<In Tolman's Records, he marks that they moved the first Guest up to the cell on March 24th, and 'almost immediately' he is proven right that this is a bad idea. Even later in Tolman's own records, in July of 1988, he says 'an incident happened in the park that made it need to shut down' so I'm confused. Was this just a little error that was overlooked? The record with the possible error is in the storage cell in Haunted Hills. >!​!<