If you're having issues with the app crashing it's generally a good idea to make sure you have at last 3gig of memory available on your device. This is the physical memory of the device, not iCloud. You can check this in your phone's Settings > General > About > Available. You can also check your device memory in Slatable on the Settings page. There are a few things you can do to free up space. Please check this article on Apple's website.
Try restarting your phone.
Backup and Reinstall
If a restart doesn't clear up the issue back up your Auditions by exporting them as deleting the app deletes all content, delete the app and download again from the AppStore.
Please contact us if you are having issues.