i accidentally deleted my contacts app on my galaxy s4 cone

I have a rooted sg S4 clone. I deleted the contacts app. On installing it again shows app not installed. On copying it to system/apps and rebooting also didnt install it. Here are my phone info. Plz help
Hardware : MT6589

Model : GT-I9500

Build number : ALPS.JB7.MP.V1.14

Build date UTC : 20141028-102439

Android v : 4.4.4

Baseband v: MOLY.WR8.W1315.MD.WG.MP.V38, 2014/05/22 12:01

Kernel v : 3.4.39 (whl@server7) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP Tue Oct 28 18:22:58 CST 2014

Uboot build v : ----- should be root shell

LCD Driver IC : 1-ili9806e_IVO_fwvga