How do I locate the crash logs file?
To locate the crash logs.
From Lion 10.7.x to Sierra 10.12.x, from the desktop press the Option key and select Go > Library.
Library > Logs > Diagnostic reports > there will be one or more files that look similar to this --> Phocus_2017-11-21 105653_MacBook-Pro.
These files are advantageous for technical support to review should you encounter a problem.