Fixes missing error case

app/src/main/java/net/pokeranalytics/android/model/realm/Player.kt

@@ -57,6 +57,7 @@ open class Player : RealmObject(), NameManageable, Deletable, StaticRowRepresent
     override fun getFailedSaveMessage(status: SaveValidityStatus): Int {
         return when(status) {
             SaveValidityStatus.ALREADY_EXISTS -> R.string.duplicate_user_error
+            SaveValidityStatus.DATA_INVALID -> R.string.user_empty_field_error
             else -> super.getFailedSaveMessage(status)
         }
     }