fixed wrong data type causing exception

source/RobotAPI/components/units/ForceTorqueObserver.cpp

@@ -86,7 +86,7 @@ void ForceTorqueObserver::onConnectObserver()
     debugDrawer = getTopic<DebugDrawerInterfacePrx>("DebugDrawerUpdates");
     if (getProperty<bool>("VisualizeForce").getValue())
     {
-        visualizerTask = new PeriodicTask<ForceTorqueObserver>(this, &ForceTorqueObserver::visualizerFunction, getProperty<bool>("VisualizeForceUpdateFrequency").getValue(), false, "visualizerFunction");
+        visualizerTask = new PeriodicTask<ForceTorqueObserver>(this, &ForceTorqueObserver::visualizerFunction, getProperty<int>("VisualizeForceUpdateFrequency").getValue(), false, "visualizerFunction");
         visualizerTask->start();
     }