Ewwww. Not good. That's a lot of seperation and I doubt I'd mess with it. I'd pitch it, correct the cause, and start another.
How far apart is the gap in that area of your press? Same as everywhere else? How much pressure did you put in the hose? Did it stay inflated the whole time? There weren't side alignment plates or anything right there that could have kept the lams from being pushed together was there?