I can't get Redstone Mansion. The game is freezes.

Hello,
When I get in the shop and try to get Redstone Mansion (it is for free), the window appear and says to wait. I been waiting for minuts and the traid is never get done. The game was freezed with the window and I couldn't stop process or do anything, (tryed to stop internet) just to restart the hole ios. I can't get the Redstone Mansion. I was waiting to new version, but it didn't help.

P.S. My Minecraft PE version is 1.1.5. It is affects version I think, but the system do not recognise it.