Exclamation [Q] Set_perm status 7

I have made a CUSTOM ROM for my device SONY XPERIA J (ST26i) [Jlo] and when i enter the CWM and install it it gives me status 7 set_perm failed
There is a love story between me and android development !
My Devices:

*Sony Xperia J (ST26i) Unlocked Bootloader & with Doomsday ROM with vengeance kernel OVERCLOCK TO 1.3GHz
*Sony Xperia V (LT25) Locked bootloader & Stock Firmware
*Sony Ericsson Vivaz

My works:
Doomsday ROM for Xperia J