Soma wont start, please help

[XxX]

Hello, i hope someone can help me!

Soma just suddenly wont start. I have played for about 6 ours, but then a few ours after i played the last time it wont start up. It only show a warning text, following: Terminated Unexpectedly. What can this be?

Process: Soma [459]
Path: /Users/USER/Library/Application Support/Steam/*/Soma.app/Contents/MacOS/Soma
Identifier: com.frictionalgames.SOMA-steam
Version: 1.0.0 (1.0.0)
Code Type: X86-64 (Native)
Parent Process: launchd [147]
Responsible: Soma [459]
User ID: 501

Date/Time: 2015-09-23 16:36:32.156 +0200
OS Version: Mac OS X 10.9.5 (13F1112)
Report Version: 11
Anonymous UUID: 6F4B6EF6-6F9F-E1E4-089E-20831B814A0C


Crashed Thread: 0 MainThrd Dispatch queue: com.apple.main-thread