You may have a corrupt InDesign application and/or a corrupt InDesign document.
Which version of InDesign and OS do you have?
I got OS X 10.10.5 and the latest version of InDesign
If InDesign is still crashing try this: uninstall InDesign, using the drop-down in the Creative Cloud app (the cog icon, see screen shot below), then run Adobe Cleaner Use the Creative Cloud Cleaner Tool to solve installation problems before reinstalling InDesign.
This should give you a clean install and the latest version.
Assuming the application launches properly, open the document you're having problems with, save it as an IDML file, rename it and try reopening the new doc in InDesign.