hopefully this isn't a fault as I've seen faults like this before. Firstly try turning your phone off completely then turn back on, if you haven't already, as this may wipe the error. If this doesn't work you could try going to 'Settings', then 'Apps', then look for or search for the app which you use for your alarm (mine is simply called 'clock' which comes with samsung mobile) and select it, you should now see a 'Force Stop' button, press this and accept. this should hopefully fix the issue. if not it may be a fault,
hope this helps
