Problem with alarm klock app

[Jandyrackson]

I have a samsung captivate and downloaded the alarm klock app yesterday. Even though I set the alarm, it did not go off. Naturally, I uninstalled the app, but my lock screen still has the alarm notice on it. By "alarm notice" I mean the alarm clock symbol with the time stamp, "20 hours, XX Minutes". I checked in the stock alarm clock app, and there are no alarms. How can I get rid of this?