Report a bug
Released versions of CuePoint report their own errors when they hit one, unless you turned that off in Settings → Privacy → Send error reports. You do not need to do anything for those.
To tell us more, use Help → Report a problem in the app. It sends your note with the app's version and the id of the last error report, which helps find it. If you cannot do that, or want a reply by email, fill in this form.