If there's a crash, you may be unsure whether you've enabled any developer options. If you've any this option, you can't report it.
While your app crashes, an "Instacrash" notification will appear on your screen; now send your crash log. Select the client email (as Outlook, or Gmail) Your concerned error will automatically be generated from here You may describe your call to action for troubleshooting your mistake in the "USER_COMMENT" section. Confirm and send your request to the developer.