diff --git a/README.md b/README.md
index 22ebc9c..ff24c70 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,20 @@
 # MapLoader
 Map Backup/Restore for Xiaomi Vacuum and Roborock
 
+##
+
+##
+This is a fork of Thyraz maploader! Thanks for his great work.
+
+##
+Modifications made by me:
+- added check wether file exists. If not --> skip + create error msg
+- added all necessary files for transfer; Reason: reloading map worked fine but several times docking station was rotated. Made already defined zones useless
+- added logging via mqtt. Subscribe to: rockrobo/map/log
+
+
+
+
 ## Description
 MapLoader is a NodeJS based service, running on the robot that listens to MQTT commands.\
 Available topics:
diff --git a/maploader.js b/maploader.js
index b08f5cc..b5601df 100644
--- a/maploader.js
+++ b/maploader.js
@@ -1,10 +1,11 @@
 const fs = require('fs');
 const mqtt = require('mqtt');
-const client = mqtt.connect('mqtt://172.17.2.86');
+const client = mqtt.connect('mqtt://user:passwd@xxx.xxx.xxx.xxx',{clientId:"rockrobo"});//enter your mqtt-server credentials here
 
 // Subscribe Topics
 client.on('connect', () => {
 	console.log("Connected");
+    	client.publish("rockrobo/map/log", "Connected");//added log via mqtt
 	client.subscribe('rockrobo/map/load');
 	client.subscribe('rockrobo/map/save');
 });
@@ -16,6 +17,8 @@ client.on('message', (topic, message) => {
 		var destination = '/mnt/data/rockrobo/';
 
 		console.log("Received Load Request: " + message);
+
+        	client.publish("rockrobo/map/log", "Received Load Request: " + message);//added log via mqtt
 		copyFiles(source, destination);
 	}
 
@@ -24,21 +27,31 @@ client.on('message', (topic, message) => {
 		var destination = '/mnt/data/maploader/maps/' + message + '/';
 
 		console.log("Received Save Request: " + message);
+        	client.publish("rockrobo/map/log", "Received Save Request: " + message);//added log via mqtt
 		copyFiles(source, destination);
 	}
 });
 
 // Backup or restore map files
 function copyFiles(source, destination) {
-	const files = ['user_map0', 'last_map', 'PersistData_1.data', 'PersistData_2.data'];
+	const files = ['user_map0', 'last_map', 'PersistData_1.data', 'PersistData_2.data', 'ChargerPos.data', 'Rotater.cfg', 'StartPos.data'];//added all necessary files for complete transfer, otherwise docking station could be rotated to map which makes created zones useless
 
 	if (!fs.existsSync(destination)){
 		fs.mkdirSync(destination);
 		console.log('Created directory: ' + destination);
+        	client.publish("rockrobo/map/log", 'Created directory: ' + destination);//added log via mqtt
 	}
 
 	for (i = 0; i < files.length; i++) {
-		fs.copyFileSync(source + files[i], destination + files[i]);
-		console.log('Copied ' + files[i] + ' from ' + source + ' to ' + destination);
+        if (!fs.existsSync(source + files[i])){//check if files not existing and create error msg
+            console.log('Error: ' + source + files[i] + ' not found');
+            var options = {retain:true, qos:1};
+            client.publish('Error: ' + "rockrobo/map/log", files[i] + ' not found', options);//added log via mqtt
+        }
+        else{//if file present, copy and create msg
+    		fs.copyFileSync(source + files[i], destination + files[i]);
+	    	console.log('Copied ' + files[i] + ' from ' + source + ' to ' + destination);
+            	client.publish("rockrobo/map/log", 'Copied ' + files[i] + ' from ' + source + ' to ' + destination);//added log via mqtt
+        }
 	}
 }