anyone know why this mod doesnt work for my Z on EXCELUS 4.2.0?

1) Flashed the mod then wiped cache + Dalvik cache
2) Once rebooted I went to Settings > Apps > All and erased data for these apps:

Camera, Camera common, Camera Extension, Cameras, Picture Effect and Sweep Panorama
3) I then went into ES File explorer, extracted the apks from this mod and replaced them manually in /system/app - Setting permissions at rw- r-- r-- (chmod 644)
4) I rebooted and then the Camera no longer FCs from launch (Occasional FCs do occur but that is to be considered normal as the app is not fully stable yet.)

i tried doing that, but some apps data cannot be erased.
then i extracted all the apks from the zip n i move into system/app.
restarted still fc.