Suddenly I can't get QuickTime Player to work anymore because it crashes right after opening it. I do not know if this is the right error message from the log:
Application Specific Information:
Sandbox creation failed: Container object initialization failed.
NSCocoaErrorDomain:512
Does anyone know how to fix the problem or how to reinstall the application even if it's a system app?
~/Library/Containers/com.apple.QuickTimePlayerX
– Redarm Mar 14 '16 at 14:12