Hello! I've been having an ongoing problem in my current league, and it seems to be getting worse. OOTP17 crashes when I'm playing through a game, and it does it often enough that I've started saving every time I win. (I mind less if it crashes when I'm losing.

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There doesn't seem to be any rhyme or reason to the crashes—they happen in broadcast mode and in 3D, during the action and in between plays, and just about any other time. It also crashes when I'm not playing games, but much more rarely. I've had this problem in OOTP17 before with an earlier league, but it seems to be worse now.
I'm running the game through Steam on a MacBook Air with a 1.3 GHz Intel Core i5 and 4 GB of RAM. Version 10.11.13 of OSX. Following a suggestion on an earlier thread, I tried disabling helper threads, but the game kept crashing anyway.
I've uploaded the game files under the name Brooklyn Atlantics. Let me know if you can help. In the meantime, I'll keep saving after every win. I've got a pennant race going here!