diff --git a/phpmyfaq/show.php b/phpmyfaq/show.php
index ca8b87b1b6..0de2f4821e 100644
--- a/phpmyfaq/show.php
+++ b/phpmyfaq/show.php
@@ -112,6 +112,7 @@
         ]
     );
 } else {
+    $selectedCategoryId = 0;
     try {
         $faqSession->userTracking('show_all_categories', 0);
     } catch (Exception) {
@@ -129,7 +130,7 @@
             'categoryDescription' => '',
             'categoryFaqsHeader' => '',
             'categorySubsHeader' => '',
-            'categoryContent' => $categoryHelper->renderCategoryTree(),
+            'categoryContent' => $categoryHelper->renderCategoryTree($selectedCategoryId),
             'subCategoryContent' => $subCategoryContent,
             'categoryLevelUp' => '',
         ]
diff --git a/phpmyfaq/src/phpMyFAQ/Category/CategoryRelation.php b/phpmyfaq/src/phpMyFAQ/Category/CategoryRelation.php
index a54a259265..b6ab1a1c59 100644
--- a/phpmyfaq/src/phpMyFAQ/Category/CategoryRelation.php
+++ b/phpmyfaq/src/phpMyFAQ/Category/CategoryRelation.php
@@ -123,19 +123,17 @@ public function getCategoryTree(): array
                 );
             } else {
                 $query .= sprintf(
-                    'AND ( fdg.group_id IN (%s) OR (fdu.user_id = %d OR fdg.group_id IN (%s)) )
-                    AND ( fcg.group_id IN (%s) OR (fcu.user_id = %d OR fcg.group_id IN (%s)) )',
-                    implode(', ', $this->category->getGroups()),
+                    'AND ( fdu.user_id = %d OR fdg.group_id IN (%s) )
+                    AND ( fcu.user_id = %d OR fcg.group_id IN (%s) )',
                     $this->category->getUser(),
                     implode(', ', $this->category->getGroups()),
-                    implode(', ', $this->category->getGroups()),
                     $this->category->getUser(),
                     implode(', ', $this->category->getGroups())
                 );
             }
         }
 
-        if (strlen((string) $this->config->getLanguage()->getLanguage()) > 0) {
+        if (strlen($this->config->getLanguage()->getLanguage()) > 0) {
             $query .= sprintf(
                 " AND fd.lang = '%s'",
                 $this->config->getLanguage()->getLanguage()
@@ -237,7 +235,7 @@ public function getNumberOfFaqsPerCategory(bool $categoryRestriction = false, bo
     }
 
     /**
-     * Calculates the aggregated numbers of FAQs for a given category
+     * Calculates the aggregated numbers of FAQs
      */
     public function getAggregatedFaqNumbers(array $categories, int $parentId = 0): array
     {
diff --git a/phpmyfaq/src/phpMyFAQ/Helper/CategoryHelper.php b/phpmyfaq/src/phpMyFAQ/Helper/CategoryHelper.php
index 070bf7831e..f7c6f5aea3 100644
--- a/phpmyfaq/src/phpMyFAQ/Helper/CategoryHelper.php
+++ b/phpmyfaq/src/phpMyFAQ/Helper/CategoryHelper.php
@@ -118,7 +118,7 @@ public function renderCategoryTree(int $parentId = 0): string
         $categoryRelation = new CategoryRelation($this->config, $this->Category);
         $categoryRelation->setGroups($this->Category->getGroups());
         $categoriesWithNumbers = $categoryRelation->getCategoryTree();
-        $aggregatedNumbers = $categoryRelation->getAggregatedFaqNumbers($categoriesWithNumbers);
+        $aggregatedNumbers = $categoryRelation->getAggregatedFaqNumbers($categoriesWithNumbers, $parentId);
 
         return sprintf(
             '<ul class="pmf-category-overview">%s</ul>',