galaxy s5 calls when I double tap homescreen

[AC Question]

I'm using next launcher 3d and everytime i double tap in homescreen it starts making phone calls.This problem is only with this launcher.Can anyone tell me how to fix it?Ive already tried the launcher settings and even the phone settings with no success and its very annoying to call people accidentally and apologize for it.

 

[B. Diddy]

Welcome to Android Central! Go to the Next Launcher 3D settings, and tap Gesture Settings. Is there an option there for Double Tap?