If you're using 10.11, check this out:
A crash occurs when executing a call to network API on OS X 10.11 El Capitan
Based on the Diagnostic Report, the crash occurred during the discovering of other computers on the network and it's related to a call to network API.
As a temporary solution, disabling the 'Discovering of other computers on the network' in player.cfg helped, but this is not a fix and we cannot exclude that the crash appears again. There can be other situations in which a call to the same API can be executed.
The workaround in that page helped me. Some weeks ago they've also sent me a test library fixing the issue (I've reported the problem on their forums). You may get in touch with them or wait for an official fix.