I just recently updated to beta 14 with much excitement to be greeted with a myriad of woes. Beta 14 broke my entire app in which little to nothing operates as it did before.
Yeah there was a lot written about Beta 14 being a big change. Angular has been updated to 1.3 which does contain some breaking changes.
Also caching is implemented by default which may cause some issues for you.
I recommend that you take a read through the blog posts / documentation around beta 14 to see what’s changed. I wouldn’t imagine it’d take that much to get your app functioning again.