PvZGW game crashes on one or two matches of Garden Ops (PS3)

Occasionally, on Garden Ops on my Playstation 3, on one or two matches the game freezes. It's been happening recently to me and I hate it. I want to beat Hard Mode and CRRAAAAZY mode there on all maps but NOOOOO the game always has to crash. But I wonder if this happens to the other people my team. Fix this pleeeaaasse!