Play Store crahes after reinstall in /system/app I've Archos 45B Helium rooted, with 4.4.4 android version. 
I've got some problem with Play Store so I backed up it with Titanium and I delete it. I was not able to restore. So I downloaded "com.android.vending-5.3.5" and I instaled it as Phonesky.apk in the /system/app directory and change is permission to 644.
Now Play Store is installed but it crashes all the times. 

Could I take Google_Apps wich are in the http://wiki.cyanogenmod.org/w/Google_Apps
and which version I've to take.

Thanks for your support.
On Android 4.4.4 there is no more /system/app but /system/priv-app the main directory of the applications need special access
Following this Link of Android exchange
I checke dthe version of the tols was not removed. I my case I did that with the 4.4.22 version of Google play store

adb shell
shell@ac45bhe:/ $ su 
root@ac45bhe:/ # mount -o remount,rw /system
root@ac45bhe:/ # cp /storage/sdcard1/com.android.vending-4.4.22-80240022-minAPI8.apk /system/priv-app/Phonesky.apk
root@ac45bhe:/ # chmod 644 /system/priv-app/Phonesky.apk
root@ac45bhe:/ # reboot


And I installed com.android.vending-5.3.5-80330500-minAPI9.apk from Android thought the internal file explorer, accepting unknown source when the system asked.