I9300 - Install ROM

Hello mates!

I have a I9300 SGS3 and I decided to change the ROM to a Akop, but I've had several drawbacks:

- The main problem is that sometimes the phone is locked. Light touch buttons respond, but the screen freezes and I have to pull the battery or hold down the power button for several seconds. This causes problems, because it seems that the data is corrupted, and when you start again, you delete the application settings, and sometimes the phone does not start, and should I reinstall the ROM.

- Eventually, when I open the panel automatically closes applications, and so if I try several times. This does not happen often, but a couple of times a day

The installation procedure I follow is as follows:
1. Enter to recovery mode from CMW touch 6.0.3.1
2. Wipe data / factory Reset
3. Wipe cache partition
4. Mounts and storage -> format /cache
5. Mounts and storage -> format /system
6. Mounts and storage -> format /data
7. Mounts and storage -> format /preload
8. Mounts and storage -> format /sdcard
9. Mounts and storage -> format /data and /data/media (/sdcard)
10. Advanced -> wipe dalvik cache
11. Install zip from sdcard -> choose zip from external sdcard -> Install ROM package
12. Install zip from sdcard -> choose zip from external sdcard -> Custom Kernel
13. Install zip from sdcard -> choose zip from external sdcard -> Install Gapps
14. fix permissions
15. Reboot system now

I hope you can help me with this problem because I can not find any solution.

My thanks in advance.

Greetings!