diff --git a/App.tsx b/App.tsx
index 33c55ef..db4720b 100644
--- a/App.tsx
+++ b/App.tsx
@@ -77,10 +77,13 @@ const MapResizer = () => {
 };
 
 const AdSenseComponent = () => {
+  const loadedRef = useRef(false);
   useEffect(() => {
+    if (loadedRef.current) return;
     try {
       // @ts-ignore
       (window.adsbygoogle = window.adsbygoogle || []).push({});
+      loadedRef.current = true;
     } catch (e) {
       console.error('AdSense error:', e);
     }
diff --git a/package-lock.json b/package-lock.json
index 1f6769c..5b7e948 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "dependencies": {
         "@google/genai": "1.40.0",
         "cors": "^2.8.6",
+        "dotenv": "^17.3.1",
         "express": "^5.2.1",
         "leaflet": "1.9.4",
         "lucide-react": "0.460.0",
@@ -2168,6 +2169,18 @@
         "node": ">=8"
       }
     },
+    "node_modules/dotenv": {
+      "version": "17.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.3.1.tgz",
+      "integrity": "sha512-IO8C/dzEb6O3F9/twg6ZLXz164a2fhTnEWb95H23Dm4OuN+92NmEAlTrupP9VW6Jm3sO26tQlqyvyi4CsnY9GA==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
diff --git a/package.json b/package.json
index ed2cd9c..1afa268 100644
--- a/package.json
+++ b/package.json
@@ -5,12 +5,14 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
+    "server": "node server.js",
     "build": "vite build",
     "preview": "vite preview"
   },
   "dependencies": {
     "@google/genai": "1.40.0",
     "cors": "^2.8.6",
+    "dotenv": "^17.3.1",
     "express": "^5.2.1",
     "leaflet": "1.9.4",
     "lucide-react": "0.460.0",
diff --git a/server.js b/server.js
index d8515ee..349cff1 100644
--- a/server.js
+++ b/server.js
@@ -1,3 +1,4 @@
+import "dotenv/config";
 import express from 'express';
 import mysql from 'mysql2/promise';
 import cors from 'cors';
@@ -55,7 +56,8 @@ async function initializeDB() {
     const [rows] = await pool.query('SELECT COUNT(*) as count FROM markers');
     console.log(`[DB] Current Status: ${rows[0].count} markers stored in database.`);
   } catch (error) {
-    console.error('[DB] MariaDB connection failed:', error.message);
+    console.error('[DB] MariaDB connection failed details:', error);
+    console.error('[DB] Host:', dbConfig.host);
     process.exit(1);
   }
 }
@@ -74,8 +76,8 @@ app.get('/api/markers', async (req, res) => {
     }));
     res.json(formattedMarkers);
   } catch (error) {
-    console.error(error);
-    res.status(500).json({ error: 'Failed to fetch markers' });
+    console.error('[API] GET Markers Error:', error);
+    res.status(500).json({ error: 'Failed to fetch markers', detail: error.message });
   }
 });
 
@@ -97,8 +99,8 @@ app.post('/api/markers', async (req, res) => {
     if (isDebug) console.log(`[API] Successfully saved marker: ${id}`);
     res.json({ success: true });
   } catch (error) {
-    console.error(error);
-    res.status(500).json({ error: 'Failed to save marker' });
+    console.error('[API] POST Marker Error:', error);
+    res.status(500).json({ error: 'Failed to save marker', detail: error.message });
   }
 });