I have OS X Yosemite v. 10.10.5. After an update about 6 weeks ago Pages started refusing to respond, then shutting down unexpectedly. Today Pages will not open at all. I get the error message that Pages has shut down, do I want to reopen or report but reopen doesn't work. Any suggestions??
I'd try clearing the saved state files.
- Cmd ⌘ N
- Cmd ⌘ Shift ⇧ G
~/Library/Saved Application State
Find the folder com.apple.iWork.Pages.savedState and delete the contents not the folder itself, as it's an alias.
That should give Pages a fresh start.