Fehlerkorrekturen

lib/tools/mqtt_core.dart

@@ -477,7 +477,9 @@ class MqttCore {
           await MyApp.isarInstance.writeTxn(() async {
             await MyApp.isarInstance.enqueuedMessages.delete(enqueuedMessage.id);
           });
-        } catch (ex) {}
+        } catch (ex) {
+          Util.logInfo("resend enqueued message failed: $ex");
+        }
       }
     }
   }