Hi and welcome,
I’m sorry to hear this.
You can find all crash logs in the Console system utility. On the left side of the Console, open the User Diagnostic Reports. Here, you can see crashes of all applications, in the alphabetical order. Select the name of the crashlog (for example Cubase 8_2015-08-17-…), drag-and-drop it to the desktop (or somewhere). Now, you can operate with it as with a normal file (which it is, in fact).