diff --git a/config.php b/config.php
index 50a4543..4d615ad 100755
--- a/config.php
+++ b/config.php
@@ -48,68 +48,5 @@ $twig->addGlobal('delete_part_confirm', $translator->trans('Are you sure you wan
 $twig->addGlobal('delete_category_confirm', $translator->trans('Are you sure you want to delete this category?'));
 
 // Build category tree for sidebar
-try {
-    $db = App\Database\Database::getInstance();
-    $categories = App\Models\Category::getAll($db);
-    $items = App\Models\Item::getAll($db);
-
-    function buildTree($categories, $items, $parentId = null, &$visited = [], $depth = 0) {
-        if ($depth > 5) return []; // Limit depth
-        $tree = [];
-        foreach ($categories as $cat) {
-            if ($cat['parent_id'] == $parentId && !in_array($cat['id'], $visited)) {
-                $visited[] = $cat['id'];
-                $node = [
-                    'id' => $cat['id'],
-                    'name' => $cat['name'],
-                    'children' => buildTree($categories, $items, $cat['id'], $visited, $depth + 1),
-                    'items' => []
-                ];
-                // Limit items to 20 per category
-                $itemCount = 0;
-                foreach ($items as $item) {
-                    if ($item['category_id'] == $cat['id'] && $itemCount < 20) {
-                        $node['items'][] = $item;
-                        $itemCount++;
-                    }
-                }
-                $tree[] = $node;
-            }
-        }
-        return $tree;
-    }
-
-    $categoryTree = buildTree($categories, $items);
-
-    function renderTree($nodes, $depth = 0) {
-        if ($depth > 5) return '';
-        $html = '';
-        foreach ($nodes as $node) {
-            $html .= '<li>';
-            $html .= '<span class="category" onclick="toggleCategory(this)">' . htmlspecialchars($node['name']) . '</span>';
-            if (!empty($node['children'])) {
-                $html .= '<ul style="display: none;">';
-                $html .= renderTree($node['children'], $depth + 1);
-                $html .= '</ul>';
-            }
-            if (!empty($node['items'])) {
-                $html .= '<ul class="items">';
-                foreach ($node['items'] as $item) {
-                    $html .= '<li><a href="#" onclick="editItem(' . (int)$item['id'] . ')" class="item-link">' . htmlspecialchars($item['name']) . '</a></li>';
-                }
-                $html .= '</ul>';
-            }
-            $html .= '</li>';
-        }
-        return $html;
-    }
-
-    $sidebarHtml = '<ul class="category-tree">' . renderTree($categoryTree) . '</ul>';
-    if (strlen($sidebarHtml) > 50000) { // If too large, use menu
-        $sidebarHtml = '<ul class="nav flex-column nav-pills"><li class="nav-item"><a class="nav-link" href="#" data-route="/">Overview</a></li><li class="nav-item"><a class="nav-link" href="#" data-route="/categories">Categories</a></li><li class="nav-item"><a class="nav-link" href="#" data-route="/parts">Parts</a></li></ul>';
-    }
-} catch (Exception $e) {
-    error_log('Error building category tree: ' . $e->getMessage());
-    $sidebarHtml = '<ul class="nav flex-column nav-pills"><li class="nav-item"><a class="nav-link" href="#" data-route="/">Overview</a></li><li class="nav-item"><a class="nav-link" href="#" data-route="/categories">Categories</a></li><li class="nav-item"><a class="nav-link" href="#" data-route="/parts">Parts</a></li></ul>';
-}
+$sidebarHtml = '<ul class="nav flex-column nav-pills"><li class="nav-item"><a class="nav-link" href="#" data-route="/">Overview</a></li><li class="nav-item"><a class="nav-link" href="#" data-route="/categories">Categories</a></li><li class="nav-item"><a class="nav-link" href="#" data-route="/parts">Parts</a></li></ul>';
 $twig->addGlobal('sidebar_html', $sidebarHtml);