Adding conditional call to a pointer that might crash if connection is lost

src/VANetMessage.cpp

@@ -195,6 +195,9 @@ void CVANetMessage::WriteAnswer()
 
 	try
 	{
+		if (!m_pConnection)
+			VISTA_THROW("Seems like the VA connections is lost, can not write VA net message answer", 255);
+
 		// It appears to be safe to transmit an entire buffer of arbitrary size on sender side
 		int nRet = m_pConnection->WriteRawBuffer( m_oOutgoing.GetBuffer(), m_oOutgoing.GetBufferSize() );
 		m_pConnection->WaitForSendFinish();