Problem with connect()

[mrnor3]

Hallo everybody.

I have a problem with using connect between two different objects and methods, here
is some of the code:

this->_alarmPanelLed1 = new AlarmPanelLed(QPointF(-205,-225), "VHF1", Qt::red);
this->_alarmPanelScene->addItem(this->_alarmPanelLed1);
 
connect(this->_alarmPanelLed1, SIGNAL(lightChanged(bool)), this->_comThread, SLOT(lightChanged(bool)) );

this->_alarmPanelLed1 = new AlarmPanelLed(QPointF(-205,-225), "VHF1", Qt::red);
this->_alarmPanelScene->addItem(this->_alarmPanelLed1);

connect(this->_alarmPanelLed1, SIGNAL(lightChanged(bool)), this->_comThread, SLOT(lightChanged(bool)) );

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And here is the error message i got:
Unhandled exception at 0x00430044 in hardwaretester.exe: 0xC000008C: Array bounds exceeded.