Reply to Traktor Sample Help!!!!

After the 2.5 I noticed, On my Traktor Kontrol S2, when I press the A or B button in a loop, and press one of the 4 buttons, to make a sample, there is a flashing red warning sign on the bottom saying "Can't Copy from empty loop recorder.."
Please help?
I resented my mapping
I don't know what too do!