Crash in ?activate@QMetaObject@@SAXPAVQObject@@HHPAPAX@Z+1C0

Call stack:
Address Frame Function SourceFile
014C43E0 00000000 ?activate@QMetaObject@@SAXPAVQObject@@HHPAPAX@Z+1C0
014C4A9E 00000000 ?activate@QMetaObject@@SAXPAVQObject@@PBU1@HPAPAX@Z+1E
0156E5F3 00000000 ?channelReadyRead@QIODevice@@QAEXH@Z+23
019EF463 00000000 ?canReadNotification@QAbstractSocketPrivate@@UAE_NXZ+123
01A4DDF5 00000000 ?event@QReadNotifier@@MAE_NPAVQEvent@@@Z+15
01AF240E 00000000 ?notify_helper@QApplicationPrivate@@QAE_NPAVQObject@@PAVQEvent@@@Z+CE
01AF0A9B 00000000 ?notify@QApplication@@UAE_NPAVQObject@@PAVQEvent@@@Z+169B
015738F1 00000000 ?notifyInternal2@QCoreApplication@@CA_NPAVQObject@@PAVQEvent@@@Z+B1
0165ACFA 00000000 ?qt_internal_proc@@YGJPAUHWND__@@IIJ@Z+25A
75688E71 00000000 CallNextHookEx+B1
756890D1 00000000 CallNextHookEx+311
7568A66F 00000000 GetMessageW+24F
7568A6E0 00000000 DispatchMessageW+10
0165A2ED 00000000 ?processEvents@QEventDispatcherWin32@@UAE_NV?$QFlags@W4ProcessEventsFlag@QEventLoop@@@@@Z+5FD
01FF1DD4 00000000 ?processEvents@QWindowsGuiEventDispatcher@@UAE_NV?$QFlags@W4ProcessEventsFlag@QEventLoop@@@@@Z+14
015069F6 00000000 ?exec@QEventLoop@@QAEHV?$QFlags@W4ProcessEventsFlag@QEventLoop@@@@@Z+1B6
015721B4 00000000 ?exec@QCoreApplication@@SAHXZ+144

This crash doesn't happen in few days. But one day it will. It's wierd.