[Mac] Crash on startup

Since a few days the 2.0 beta fails to start even when doing mscore -F from the trace in lldb I assume it is related to an error message that pops up: "could not read /data/MyFirstScore.mscx"

plugin,NP_GetEntryPoints end
2014-11-22 11:18:49.628 mscore[95144:2744857] Error loading /Library/Internet Plug-Ins/Silverlight.plugin/Contents/MacOS/agcore: dlopen(/Library/Internet Plug-Ins/Silverlight.plugin/Contents/MacOS/agcore, 262): no suitable image found. Did find:
/Library/Internet Plug-Ins/Silverlight.plugin/Contents/MacOS/agcore: mach-o, but wrong architecture
Process 95144 stopped
* thread #1: tid = 0x29e219, 0x0000000100372ee0 mscore`Ms::loadScores(QStringList const&) [inlined] Ms::Score::setCreated(this=, val=) at score.h:681, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x390)
frame #0: 0x0000000100372ee0 mscore`Ms::loadScores(QStringList const&) [inlined] Ms::Score::setCreated(this=, val=) at score.h:681
678
679 bool isSavable() const;
680 bool dirty() const;
-> 681 void setCreated(bool val) { _created = val; }
682 bool created() const { return _created; }
683 bool saved() const { return _saved; }
684 void setSaved(bool v) { _saved = v; }