If Guitar hard crashes, there aren't any documented ways to obtain error log files

[tommai78101]

OS: Ubuntu 20.04.2 LTS
Guitar version: v1.2.0 (1001631)
QT version: 5.9.3
gcc version: 4.8.4

If Guitar hard-crashes, where would I as a user look for the error log messages that contains information on why Guitar crashes? There aren't any documented ways to obtain the log files or error log messages on the README.md.

I can constantly reproduce the Guitar hard crashes, and would like to report each type of crash results here.

I would like to request for:

1. Information on where and what location to obtain the error logs when Guitar hard-crashes for the various supported OSes.
2. Information on how to submit the error logs in the README.md.