In a case of crash, Valentina Studio on linux and windows now is able to create text file that contains crash log information (stack of calls, loaded DLLs, … ). MAC OS X version of VStudio have no need to do this because OS X itself generates such crash log.
On the next start Valentina Studio will show dialog with suggestion to send this crash log to Valentina-db.com. Please note, this crash log contains totally anonymous information. This information will help to Valentina team to see that there was fact of crash, and where exactly was crash. You can set check box to not show this dialog future and just send a crash report automatically if it is found.
On Windows and Linux, after sending of crash log file, it is deleted from disk of your computer. On OS X it is not deleted, because OS X append them into single file per application.