Activation lock-Iphone 5

My phone was stolen, so i locked it on find my phone.

Now it is back, and i have removed the phone from find my phone.
But i still can`t get it to work.

I have tried to plug it in to my mac, and itunes, but getting the same problem everytime:

Your phone could not be activated because the activation server is temporaily unavailable.

Any idea how to get thos phone working again?

Thanks.