Cross 3.3.11 mac crashes after some Time

Hello,
My Cross Software at Mac OS X El Capitan always crashes after some Time of use. It can be after 10 minutes up to one hour, then it just crashes. The older Versions (32 bit) always worked very good, but all the 64 bit versions always crashes.
What is the Problem?
Normally i use the 32 bit versions for live DJ, but now they won´t start. There ist just a black window.
Is there a solution to start the older Versions at OS X El capitan, too?
My Cross Software at Mac OS X El Capitan always crashes after some Time of use. It can be after 10 minutes up to one hour, then it just crashes. The older Versions (32 bit) always worked very good, but all the 64 bit versions always crashes.
What is the Problem?
Normally i use the 32 bit versions for live DJ, but now they won´t start. There ist just a black window.
Is there a solution to start the older Versions at OS X El capitan, too?