How to manage exceptions in Qt on Mac

Sometimes in crashes there is some error message. There were 16 such crashes in total, from version 1.26 to 49.1. All exception happened on Mac OS.

Error sounds like: 
Qt has caught an exception thrown from an event handler. Throwing
exceptions from an event handler is not supported in Qt.
You must not let any exception whatsoever propagate through Qt code.
If that is not possible, in Qt 5 you must at least reimplement
QCoreApplication::notify() and catch all exceptions there.

 http://api.ugene.net/tools/ugenecrashes/index.php?id=26063

Link to page with useful info about this problem 
c++ - How to catch exceptions in Qt? - Stack Overflow