I created this map since the first version of Minecraft on iOS. It's quite old. However as of this latest update (1.9.0) I'm no longer able to even able to open the map without having the entire game crash to the desktop.

I have uploaded the map to OneDrive since it's over the 10 megabyte limit allowed here.

https://1drv.ms/u/s!AkFk2ur82Bis-nJdMqkrfCWbR5HL

edit: I should add that I have backed up my maps and reinstalled Minecraft several times without any noticeable effect in further hopes to resolve the issue.