Update src/App.js

src/App.js

@@ -695,7 +695,7 @@ const UrologyLeaderboard = () => {
                 style: { textDecoration: 'none', flexShrink: 0 }
               },
                 React.createElement('img', {
-                  src: 'https://iesrafaelalberti.es/wp-content/uploads/2025/01/IA-Big-Data-cuadrado.png',
+                  src: '/IA-Big-Data-cuadrado.png',
                   alt: 'AI and Big Data Course Logo',
                   style: {
                     width: '80px',
@@ -704,6 +704,12 @@ const UrologyLeaderboard = () => {
                     background: 'white',
                     borderRadius: '8px',
                     padding: '4px'
+                  },
+                  onError: (e) => {
+                    console.log('Error loading course image from public folder');
+                  },
+                  onLoad: () => {
+                    console.log('Course image loaded successfully from public folder');
                   }
                 })
               )