different lock screen keeps popping up

[gabi]

Hello,
I have the galaxy s4 and have had it for a year now. For some reason a different lock screen keeps popping up when I'm not using it and it depletes the battery also. I haven't downloaded anything new to make it do this, it just started doing this out of no where. It's black and purple and has an icon for messages, missed calls and the battery percentage. Also has the time, date and the Groupon logo with the weather next to it. It won't go away no matter how many times I restart my phone.

 

[B. Diddy]

A screenshot would help: http://forums.androidcentral.com/am...ide-how-post-screenshots-android-central.html