Error when starting application

[hdradio]

The following error popped up when I started the application.

07/03/2014 07:22:08 [v3.0.12.14]:********** Error/Exception Information **********
Error Message: Object is currently in use elsewhere.
Error Type: System.InvalidOperationException
Error Source: System.Drawing.Single GetHeight(System.Drawing.Graphics)
********** System Stack Trace **********
at System.Drawing.Font.GetHeight(Graphics graphics)
at DevExpress.XtraEditors.ViewInfo.LabelControlViewInfo.CalcSimpleTextSize(String Text, Boolean useHotkeyPrefix, LabelAutoSizeMode mode, Int32 predWidth, Int32 predHeight)
at DevExpress.XtraEditors.ViewInfo.LabelControlViewInfo.CalcTextSize(String Text, Boolean useHotkeyPrefix, LabelAutoSizeMode mode)
at DevExpress.XtraEditors.ViewInfo.LabelControlViewInfo.CalcTextSize(Boolean useHotkeyPrefix)
at DevExpress.XtraEditors.ViewInfo.LabelControlViewInfo.CalcTextPoints()
at DevExpress.XtraEditors.ViewInfo.LabelControlViewInfo.CalcContentRect(Rectangle bounds)
at DevExpress.XtraEditors.ViewInfo.BaseControlViewInfo.CalcRects()
at DevExpress.XtraEditors.ViewInfo.BaseControlViewInfo.CalcViewInfo(Graphics g)
at DevExpress.XtraEditors.LabelControl.LayoutChanged(Boolean isVisualUpdate)
at DevExpress.XtraEditors.LabelControl.LayoutChanged()
at DevExpress.XtraEditors.LabelControl.OnHandleCreated(EventArgs e)
at System.Windows.Forms.Control.WmCreate(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at DevExpress.Utils.Controls.ControlBase.WndProc(Message& m)
at DevExpress.XtraEditors.BaseControl.WndProc(Message& msg)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
********** End **********

By the way another error while dragging and dropping windows:

07/03/2014 08:22:09 [v3.0.12.14]:********** Error/Exception Information **********
Error Message: Object reference not set to an instance of an object.
Error Type: System.NullReferenceException
Error Source: DevExpress.XtraBars.v13.2.ServiceListener GetDefaultUIServiceListener[ServiceListener](System.Object)
********** System Stack Trace **********
at DevExpress.XtraBars.Docking2010.DragEngine.BaseUIView.GetDefaultUIServiceListener[ServiceListener](Object key)
at DevExpress.XtraBars.Docking2010.DragEngine.BaseUIView.GetUIServiceListenerCore[ServiceListener](Object key)
at DevExpress.XtraBars.Docking2010.DragEngine.BaseUIView.GetUIServiceListener[ServiceListener](Object key)
at DevExpress.XtraBars.Docking2010.DragEngine.DragServiceState.DoCancel(IUIView view, OperationType operation)
at DevExpress.XtraBars.Docking2010.DragEngine.DragServiceState.ProcessCancel(IUIView view)
at DevExpress.XtraBars.Docking2010.DragEngine.FloatingMovingDragServiceState.ProcessCancel(IUIView view)
at DevExpress.XtraBars.Docking2010.DragEngine.DragService.CancelDragOperation()
at DevExpress.XtraBars.Docking.Helpers.DockingHandlerStateVS2010.Reset()
at DevExpress.XtraBars.Docking.Helpers.DockPanelMouseHandler.Reset()
at DevExpress.XtraBars.Docking.DockPanel.InternalKeyDown(KeyEventArgs e)
at DevExpress.XtraBars.Docking.Helpers.RegularHandlerState.Reset()
at DevExpress.XtraBars.Docking.Helpers.DockPanelMouseHandler.Reset()
at DevExpress.XtraBars.Docking.DockPanel.OnLostFocus(EventArgs e)
at System.Windows.Forms.Control.WmKillFocus(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at DevExpress.XtraBars.Docking.ZIndexControl.WndProc(Message& m)
at DevExpress.XtraBars.Docking.DockPanel.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
********** End **********

[radio42]

The first is a graphics error thrown by the system, the second is a follow-up error. Could also be caused by an out-of-memory issue.
Try rebooting your system - if that doesn't help, try to delete the "ProppFrexx OnAir.layout" file from within your ProppFrexx AppUserData folder.