Adding search bar and display bar with core data then displaying search results on the same view

i'm trying to creating simple app that displays the device name when i try to search an item and display it on same view that contains actual data but app is crashing down. please help me. Screen Shot 2015-01-30 at 6.48.48 pm 1 Screen Shot 2015-01-30 at 6.49.10 pm