smash crashing distorted sound after update!!!!!!!!!

  • hello virus users, I had just update my mac to new OS X version El Capitain, and running logic pro x , when I opened my project , It throws smashed, crashed , distorted sound. I reinstalled logic x and virus control again, and nothing happens, I did the virus control OS update and nothing happens. when I disconnect usb the sound is OK , so nothing bad with the project, probably the connection. please what could be wrong? thank you for read.