Can't access either my realm or other servers

since last update I'm no longer able to access my realm with Minecraft on iPad. (The android version instead continues working.)

The realm list is empty and I can't see my friends even if my iPad is correctly connected to the network and I'm logged with my user.

I can access neither the servers but I can see them in the list. It seems there are problems also with the store.

I tried reinstalling Minecraft but it does not help.