diff --git a/Block/Menu.php b/Block/Menu.php
index 32bf8f9..1d8bc34 100644
--- a/Block/Menu.php
+++ b/Block/Menu.php
@@ -233,7 +233,7 @@ public function drawMainMenu()
             $this->extData[$ext->getCatId()] = $ext->getData();
         }
         $last = count($categories);
-        $dropdownIds = explode(',', $this->_sysCfg->general['dropdown'] ?? '');
+        $dropdownIds = explode(',', (string) $this->_sysCfg->general['dropdown']);
         $counter = 1;
         $this->removeChildrenWithoutActiveParent($categories, 0);        
         foreach ($categories as $catTop){
@@ -451,7 +451,7 @@ private function getCategoryAsArray($category, $currentCategory, $isParentActive
             'name' => $category->getName(),
             'id' => 'category-node-' . $categoryId,
             'url' => $this->_catalogCategory->getCategoryUrl($category),
-            'has_active' => in_array((string)$categoryId, explode('/', (string)$currentCategory->getPath()), true),
+            'has_active' => in_array((string)$categoryId, explode('/', (string) $currentCategory->getPath()), true),
             'is_active' => $categoryId == $currentCategory->getId(),
             'is_category' => true,
             'is_parent_active' => $isParentActive,
diff --git a/Controller/Adminhtml/Action.php b/Controller/Adminhtml/Action.php
index 8c177be..71f85e0 100644
--- a/Controller/Adminhtml/Action.php
+++ b/Controller/Adminhtml/Action.php
@@ -88,8 +88,8 @@ public function __construct(
     protected function _isAllowed()
     {
         $namespace = (new \ReflectionObject($this))->getNamespaceName();
-        $string = strtolower(str_replace(__NAMESPACE__ . '\\','', $namespace));
-        $action =  explode('\\', $string);
+        $string = strtolower(str_replace(__NAMESPACE__ . '\\','', (string) $namespace));
+        $action =  explode('\\', (string) $string);
         $action =  array_shift($action);
         return $this->_authorization->isAllowed("Magiccart_Magicmenu::magicmenu_$action");
     }
diff --git a/Helper/Data.php b/Helper/Data.php
index 28cf598..e5af49f 100644
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -28,7 +28,7 @@ public function __construct(
     {
         parent::__construct($context);
         $this->moduleManager = $moduleManager;
-        $module = strtolower(str_replace('Magiccart_', '', $this->_getModuleName()));
+        $module = strtolower(str_replace('Magiccart_', '', (string) $this->_getModuleName()));
         $this->configModule = $this->getConfig($module);
 
     }
@@ -43,7 +43,7 @@ public function getConfigModule($cfg='', $value=null)
     {
         $values = $this->configModule;
         if( !$cfg ) return $values;
-        $config  = explode('/', $cfg);
+        $config  = explode('/', (string) $cfg);
         $end     = count($config) - 1;
         foreach ($config as $key => $vl) {
             if( isset($values[$vl]) ){
diff --git a/view/frontend/templates/aio-topmenu.phtml b/view/frontend/templates/aio-topmenu.phtml
index 57730ff..f28c038 100644
--- a/view/frontend/templates/aio-topmenu.phtml
+++ b/view/frontend/templates/aio-topmenu.phtml
@@ -40,7 +40,7 @@ $drawExtraMenu = $menu['extraCat'] ? $extraHtml : '';
 		$vdrawExtraMenu = $vmenu['extraCat'] ? $extraHtml : '';
 		if($vmenu['mainCat']){
 			$vdesktop 	= $menuHtml['desktop'];
-			$vids  = explode(',', $vmenu['notIncludeNav']);
+			$vids  = explode(',', (string) $vmenu['notIncludeNav']);
 			foreach ($vids as $id) { unset($vdesktop[$id]); }
 			$vdrawMainMenu = implode("\n", $vdesktop);
 		}
@@ -71,7 +71,7 @@ $drawExtraMenu = $menu['extraCat'] ? $extraHtml : '';
 	<?php
 		if($menu['mainCat']){
 			$desktop 	= $menuHtml['desktop'];
-			$ids  = explode(',', $menu['notIncludeNav']);
+			$ids  = explode(',', (string) $menu['notIncludeNav']);
 			foreach ($ids as $id) { unset($desktop[$id]); }
 			$drawMainMenu = implode("\n", $desktop);
 		}
diff --git a/view/frontend/templates/topmenu.phtml b/view/frontend/templates/topmenu.phtml
index 52b37be..090d809 100644
--- a/view/frontend/templates/topmenu.phtml
+++ b/view/frontend/templates/topmenu.phtml
@@ -20,7 +20,7 @@ if( !$menu['enabled']){
 $menuHtml = $this->drawMainMenu();
 $mobileMenu = $menuHtml['mobile'];
 $desktop 	= $menuHtml['desktop'];
-$ids  = explode(',', $menu['notIncludeNav']);
+$ids  = explode(',', (string) $menu['notIncludeNav']);
 foreach ($ids as $id) { unset($desktop[$id]); }
 // drawHomeMenu
 $drawHomeMenu = $menu['home'] ? $this->drawHomeMenu() : '';
diff --git a/view/frontend/templates/vmenu.phtml b/view/frontend/templates/vmenu.phtml
index 12ea987..b1f241b 100644
--- a/view/frontend/templates/vmenu.phtml
+++ b/view/frontend/templates/vmenu.phtml
@@ -18,7 +18,7 @@ if(!$vmenu['enabled']) return;
 $menuHtml = $this->drawMainMenu();
 $mobileMenu = $menuHtml['mobile'];
 $desktop 	= $menuHtml['desktop'];
-$ids  = explode(',', $vmenu['notIncludeNav']);
+$ids  = explode(',', (string) $vmenu['notIncludeNav']);
 foreach ($ids as $id) { unset($desktop[$id]); }
 // drawHomeMenu
 $drawHomeMenu = $vmenu['home'] ? $this->drawHomeMenu() : '';