Tablet not open ( ı deleted custpack files)

I have vodafone smart tab 3g (alcatel pixi 3 7'' 3g). I rooted tablet and delete custpack folder and my tablet is showing ''powered by android'' and showing black screen.
Tablet has two custpack folder
home directory/system/app/custpack (ı didnt delete this)
home directory/custpack (ı deleted this)

what can ı do?

sorry for my english