diff --git a/Application/views/event/add_to_cart.tpl b/Application/views/event/add_to_cart.tpl
index 5ec242d..8d85631 100644
--- a/Application/views/event/add_to_cart.tpl
+++ b/Application/views/event/add_to_cart.tpl
@@ -41,10 +41,10 @@
               'item_brand':     '[{if $gtmManufacturer}][{$gtmManufacturer->oxmanufacturers__oxtitle->value}][{/if}]',
               'item_variant':   '[{if $oGtmProduct->getFieldData('oxvarselect')}][{$oGtmProduct->getFieldData('oxvarselect')}][{/if}]',
               [{if $gtmCategory}]
-              'item_category':  '[{$gtmCategory->getSplitCategoryArray(0)}]',
-              'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1)}]',
-              'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2)}]',
-              'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3)}]',
+              'item_category':  '[{$gtmCategory->getSplitCategoryArray(0, true)}]',
+              'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1, true)}]',
+              'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2, true)}]',
+              'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3, true)}]',
               'item_list_name':'[{$gtmCategory->getSplitCategoryArray()}]',
               [{/if}]
               'quantity': iArtQuantity
diff --git a/Application/views/event/purchase.tpl b/Application/views/event/purchase.tpl
index 4ea1909..28f8444 100644
--- a/Application/views/event/purchase.tpl
+++ b/Application/views/event/purchase.tpl
@@ -34,10 +34,10 @@
                             'coupon':           '[{foreach from=$gtmOrderVouchers item="gtmOrderVoucher" name="gtmOrderVoucherIteration"}][{$gtmOrderVoucher}][{if !$smarty.foreach.gtmOrderVoucherIteration.last}], [{/if}][{/foreach}]',
                             'item_variant':     '[{$gtmBasketItem->getFieldData("oxselvariant")}]',
                             [{if $gtmPurchaseItemCategory}]
-                            'item_category':    '[{$gtmPurchaseItemCategory->getSplitCategoryArray(0)}]',
-                            'item_category_2':  '[{$gtmPurchaseItemCategory->getSplitCategoryArray(1)}]',
-                            'item_category_3':  '[{$gtmPurchaseItemCategory->getSplitCategoryArray(2)}]',
-                            'item_category_4':  '[{$gtmPurchaseItemCategory->getSplitCategoryArray(3)}]',
+                            'item_category':    '[{$gtmPurchaseItemCategory->getSplitCategoryArray(0, true)}]',
+                            'item_category_2':  '[{$gtmPurchaseItemCategory->getSplitCategoryArray(1, true)}]',
+                            'item_category_3':  '[{$gtmPurchaseItemCategory->getSplitCategoryArray(2, true)}]',
+                            'item_category_4':  '[{$gtmPurchaseItemCategory->getSplitCategoryArray(3, true)}]',
                             'item_list_name':   '[{$gtmPurchaseItemCategory->getSplitCategoryArray()}]',
                             [{/if}]
                             'price':            [{$gtmPurchaseItemPriceObject->getPrice()}],
diff --git a/Application/views/event/remove_from_cart.tpl b/Application/views/event/remove_from_cart.tpl
index 8de971f..ae3951b 100644
--- a/Application/views/event/remove_from_cart.tpl
+++ b/Application/views/event/remove_from_cart.tpl
@@ -22,10 +22,10 @@
                             'item_name':        '[{$rmItem->getFieldData('oxtitle')}]',
                             'item_variant':     '[{$rmItem->getFieldData('oxvarselect')}]',
                             [{if $gtmBasketItemCategory}]
-                            'item_category':    '[{$gtmBasketItemCategory->getSplitCategoryArray(0)}]',
-                            'item_category_2':  '[{$gtmBasketItemCategory->getSplitCategoryArray(1)}]',
-                            'item_category_3':  '[{$gtmBasketItemCategory->getSplitCategoryArray(2)}]',
-                            'item_category_4':  '[{$gtmBasketItemCategory->getSplitCategoryArray(3)}]',
+                            'item_category':    '[{$gtmBasketItemCategory->getSplitCategoryArray(0, true)}]',
+                            'item_category_2':  '[{$gtmBasketItemCategory->getSplitCategoryArray(1, true)}]',
+                            'item_category_3':  '[{$gtmBasketItemCategory->getSplitCategoryArray(2, true)}]',
+                            'item_category_4':  '[{$gtmBasketItemCategory->getSplitCategoryArray(3, true)}]',
                             'item_list_name':   '[{$gtmBasketItemCategory->getSplitCategoryArray()}]',
                             [{/if}]
                             'price':            [{$d3oItemPrice->getPrice()}],
diff --git a/Application/views/event/view_cart.tpl b/Application/views/event/view_cart.tpl
index 879ab99..d87d478 100644
--- a/Application/views/event/view_cart.tpl
+++ b/Application/views/event/view_cart.tpl
@@ -27,10 +27,10 @@
                             'item_name':        '[{$gtmCartArticles[$basketindex]->getFieldData('oxtitle')}]',
                             'item_variant':     '[{$gtmCartArticles[$basketindex]->getFieldData('oxvarselect')}]',
                             [{if $gtmBasketItemCategory}]
-                            'item_category':    '[{$gtmBasketItemCategory->getSplitCategoryArray(0)}]',
-                            'item_category_2':  '[{$gtmBasketItemCategory->getSplitCategoryArray(1)}]',
-                            'item_category_3':  '[{$gtmBasketItemCategory->getSplitCategoryArray(2)}]',
-                            'item_category_4':  '[{$gtmBasketItemCategory->getSplitCategoryArray(3)}]',
+                            'item_category':    '[{$gtmBasketItemCategory->getSplitCategoryArray(0, true)}]',
+                            'item_category_2':  '[{$gtmBasketItemCategory->getSplitCategoryArray(1, true)}]',
+                            'item_category_3':  '[{$gtmBasketItemCategory->getSplitCategoryArray(2, true)}]',
+                            'item_category_4':  '[{$gtmBasketItemCategory->getSplitCategoryArray(3, true)}]',
                             'item_list_name':   '[{$gtmBasketItemCategory->getSplitCategoryArray()}]',
                             [{/if}]
                             'price':            [{$d3oItemPrice->getPrice()}],
diff --git a/Application/views/event/view_item.tpl b/Application/views/event/view_item.tpl
index 6f82d6b..f6349b9 100644
--- a/Application/views/event/view_item.tpl
+++ b/Application/views/event/view_item.tpl
@@ -21,10 +21,10 @@
                                 'item_brand': '[{if $gtmManufacturer}][{$gtmManufacturer->oxmanufacturers__oxtitle->value}][{/if}]',
                                 'item_variant': '[{if $gtmProduct->getFieldData("oxvarselect")}][{$gtmProduct->getFieldData("oxvarselect")}][{/if}]',
                                 [{if $gtmCategory}]
-                                'item_category':  '[{$gtmCategory->getSplitCategoryArray(0)}]',
-                                'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1)}]',
-                                'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2)}]',
-                                'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3)}]',
+                                'item_category':  '[{$gtmCategory->getSplitCategoryArray(0, true)}]',
+                                'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1, true)}]',
+                                'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2, true)}]',
+                                'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3, true)}]',
                                 'item_list_name':'[{$gtmCategory->getSplitCategoryArray()}]',
                                 [{/if}]
                                 [{assign var="d3PriceObject" value=$gtmProduct->getPrice()}]
diff --git a/Application/views/event/view_item_list.tpl b/Application/views/event/view_item_list.tpl
index 28a273e..2dbc0c9 100644
--- a/Application/views/event/view_item_list.tpl
+++ b/Application/views/event/view_item_list.tpl
@@ -25,10 +25,10 @@
                                 'price': [{$d3PriceObject->getPrice()}],
                                 'item_brand': '[{if $gtmManufacturer}][{$gtmManufacturer->oxmanufacturers__oxtitle->value}][{/if}]',
                                 [{if $gtmCategory}]
-                                'item_category':  '[{$gtmCategory->getSplitCategoryArray(0)}]',
-                                'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1)}]',
-                                'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2)}]',
-                                'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3)}]',
+                                'item_category':  '[{$gtmCategory->getSplitCategoryArray(0, true)}]',
+                                'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1, true)}]',
+                                'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2, true)}]',
+                                'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3, true)}]',
                                 [{/if}]
                                 'quantity': 1
                             }[{if !$smarty.foreach.gtmProducts.last}],[{/if}]
diff --git a/Application/views/event/view_search_result.tpl b/Application/views/event/view_search_result.tpl
index 17fccec..aad6232 100644
--- a/Application/views/event/view_search_result.tpl
+++ b/Application/views/event/view_search_result.tpl
@@ -21,10 +21,10 @@
                 'price': [{$d3PriceObject->getPrice()}],
                 'item_brand': '[{if $gtmManufacturer}][{$gtmManufacturer->oxmanufacturers__oxtitle->value}][{/if}]',
                 [{if $gtmCategory}]
-                'item_category':  '[{$gtmCategory->getSplitCategoryArray(0)}]',
-                'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1)}]',
-                'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2)}]',
-                'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3)}]',
+                'item_category':  '[{$gtmCategory->getSplitCategoryArray(0, true)}]',
+                'item_category_2':'[{$gtmCategory->getSplitCategoryArray(1, true)}]',
+                'item_category_3':'[{$gtmCategory->getSplitCategoryArray(2, true)}]',
+                'item_category_4':'[{$gtmCategory->getSplitCategoryArray(3, true)}]',
                 'item_list_name':'[{$gtmCategory->getSplitCategoryArray()}]',
                 [{/if}]
                 'quantity': 1
diff --git a/Modules/Application/Model/Category.php b/Modules/Application/Model/Category.php
index 1f27087..713e4a5 100644
--- a/Modules/Application/Model/Category.php
+++ b/Modules/Application/Model/Category.php
@@ -8,9 +8,9 @@ class Category extends Category_parent
      * @param int $indexOfArray
      * @return string
      */
-    public function getSplitCategoryArray(int $indexOfArray = -1) :string
+    public function getSplitCategoryArray(int $indexOfArray = -1, bool $bShallTakeStd = false) :string
     {
-        if ($indexOfArray > -1){
+        if ($bShallTakeStd){
             $splitCatArray =
                 array_values(
                     array_filter(
@@ -26,7 +26,7 @@ class Category extends Category_parent
                     )
                 );
 
-            if ($splitCatArray[$indexOfArray]){
+            if (($indexOfArray >= 0) and (false === empty($splitCatArray[$indexOfArray]))){
                 return $splitCatArray[$indexOfArray];
             }else{
                 return "";
diff --git a/Modules/Application/Model/Manufacturer.php b/Modules/Application/Model/Manufacturer.php
index 8ecae9a..1d98dda 100644
--- a/Modules/Application/Model/Manufacturer.php
+++ b/Modules/Application/Model/Manufacturer.php
@@ -8,9 +8,9 @@ class Manufacturer extends Manufacturer_parent
      * @param int $indexOfArray
      * @return string
      */
-    public function getSplitCategoryArray(int $indexOfArray = -1) :string
+    public function getSplitCategoryArray(int $indexOfArray = -1, bool $bShallTakeStd = false) :string
     {
-        if ($indexOfArray > -1){
+        if ($bShallTakeStd){
             $splitCatArray =
                 array_values(
                     array_filter(
@@ -26,7 +26,7 @@ class Manufacturer extends Manufacturer_parent
                     )
                 );
 
-            if ($splitCatArray[$indexOfArray]){
+            if (($indexOfArray >= 0) and (false === empty($splitCatArray[$indexOfArray]))){
                 return $splitCatArray[$indexOfArray];
             }else{
                 return "";
diff --git a/Modules/Core/ViewConfig.php b/Modules/Core/ViewConfig.php
index 0bca35c..6e9fc16 100644
--- a/Modules/Core/ViewConfig.php
+++ b/Modules/Core/ViewConfig.php
@@ -185,8 +185,8 @@ class ViewConfig extends ViewConfig_parent
                 'title' => $oView->getTitle(),
                 'cl'    => $cl,
             ],
-            'userid'    => ($oUser ? $oUser->getId() : false),
-            'sessionid' => session_id() ?? false,
+            'userid'    => is_bool($oUser) ? false : $oUser->getId(),
+            'sessionid' => session_id(),
             //'httpref'   => $_SERVER["HTTP_REFERER"] ?? "unknown"
         ];
 
diff --git a/phpstan.neon b/phpstan.neon
index 9c42940..3f7f8fa 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -10,6 +10,6 @@ parameters:
         - '#.*is not subtype of Throwable.*#'
     paths:
         - ./
-    level: 3
+    level: 4
     phpVersion: 70200
     checkMissingIterableValueType: false