diff --git a/src/com_digicom/admin/helpers/digicom.php b/src/com_digicom/admin/helpers/digicom.php
index 38750add..a25df998 100644
--- a/src/com_digicom/admin/helpers/digicom.php
+++ b/src/com_digicom/admin/helpers/digicom.php
@@ -110,8 +110,12 @@ public static function renderSidebar(){
 
 	}
 
-	public static function format_price ($amount, $ccode, $add_sym = true, $configs, $decial = null)
+	public static function format_price ($amount, $ccode, $add_sym, $configs, $decial = null)
 	{
+		if(empty($add_sym)){
+			$add_sym = true;
+		}
+
 		if($decial === NULL){
 			$decial = $configs->get('decimaldigits','2');
 		}
diff --git a/src/com_digicom/site/helpers/price.php b/src/com_digicom/site/helpers/price.php
index cf0c497b..2495df02 100644
--- a/src/com_digicom/site/helpers/price.php
+++ b/src/com_digicom/site/helpers/price.php
@@ -16,8 +16,11 @@ class DigiComSiteHelperPrice {
 	/**
 	* price formet helper
 	*/
-	public static function format_price( $amount, $ccode, $add_sym = false, $configs )
+	public static function format_price( $amount, $ccode, $add_sym, $configs )
 	{
+		if(empty($add_sym)){
+			$add_sym = false;
+		}
 
 		$currency_use = $configs->get('currency_use','symbol');
 		$currency_symbol = $configs->get('currency_symbol','$');
diff --git a/src/com_digicom/site/models/cart.php b/src/com_digicom/site/models/cart.php
index b0e18b48..73499a0b 100644
--- a/src/com_digicom/site/models/cart.php
+++ b/src/com_digicom/site/models/cart.php
@@ -972,7 +972,10 @@ function updateOrder($order_id, $result, $data, $pay_plugin, $status, $items, $c
 		$type = 'process_order';
 		if($status != 'Refund')
 		{
-			$orderTable->amount_paid = $orderTable->amount_paid + $data['total_paid_amt'];
+			if((float)$data['total_paid_amt']>0){
+				$orderTable->amount_paid = (float)$orderTable->amount_paid + (float)$data['total_paid_amt'];
+			}
+			$orderTable->amount_paid = (float)$orderTable->amount_paid;
 		}
 		else{
 			// as refund, check if has refund amout else all
@@ -1114,8 +1117,15 @@ function goToSuccessURL( $sid, $msg = '', $orderid = 0 , $type = 'new_order')
 
 	}
 
-	function getFinalize( $sid, $msg = '', $orderid = 0 , $type, $status)
+	function getFinalize( $sid, $msg, $orderid, $type, $status)
 	{
+		if(empty($orderid)){
+			$orderid = 0;
+		}
+
+		if(empty($msg)){
+			$msg = "";
+		}
 		global $Itemid;
 
 		$conf = $this->getInstance( "config", "digicomModel" );
diff --git a/src/com_digicom/site/models/categories.php b/src/com_digicom/site/models/categories.php
index d6065ee7..4cc837bc 100644
--- a/src/com_digicom/site/models/categories.php
+++ b/src/com_digicom/site/models/categories.php
@@ -87,7 +87,8 @@ protected function getStoreId($id = '')
 	 */
 	public function getItems()
 	{
-		if (!count($this->_items))
+		// dd($this->_items);
+		if (empty($this->_items))
 		{
 			$app = JFactory::getApplication();
 			$menu = $app->getMenu();
diff --git a/src/com_digicom/site/router.php b/src/com_digicom/site/router.php
index a991357d..ff0c024a 100644
--- a/src/com_digicom/site/router.php
+++ b/src/com_digicom/site/router.php
@@ -59,8 +59,9 @@ public function build(&$query)
 		{
 			// there are no menu Itemid found, lets dive into menu finder
 			$menuItem = $menu->getItems('link', 'index.php?option=com_digicom&view='.$view, true);
-			//print_r($menuItem);die;
-			if(!is_null($menuItem) && count($menuItem)){
+			// dd($menuItem);
+
+			if(!is_null($menuItem)){
 				$query['Itemid'] = $menuItem->id;
 				$menuItemGiven = true;
 			}else{
diff --git a/src/com_digicom/site/views/category/view.html.php b/src/com_digicom/site/views/category/view.html.php
index 88a35bf2..01cf64f3 100644
--- a/src/com_digicom/site/views/category/view.html.php
+++ b/src/com_digicom/site/views/category/view.html.php
@@ -99,7 +99,7 @@ public function display($tpl = null)
 		$this->category->event->afterDisplayContent = trim(implode("\n", $results));
 
 		// Compute the product slugs and prepare introtext (runs content plugins).
-		if(count($this->items))
+		if(!empty($this->items) && count($this->items))
 		{
 			foreach ($this->items as $item)
 			{
@@ -267,12 +267,13 @@ protected function prepareDocument()
 			$path = array(array('title' => $this->category->title, 'link' => ''));
 			$category = $this->category->getParent();
 			if(!empty($category)){
-				while (($menu->query['option'] != 'com_digicom' || $menu->query['view'] == 'product' || $id != $category->id) && $category->id > 1)
+
+
+				while (($menu->query['option'] != 'com_digicom' || $menu->query['view'] == 'product' || !empty($category->id) && $id != $category->id) && $category->id > 1)
 				{
 					$path[] = array('title' => $category->title, 'link' => DigiComSiteHelperRoute::getCategoryRoute($category->id));
 					$category = $category->getParent();
 				}
-
 			}
 
 			$path = array_reverse($path);
diff --git a/src/com_digicom/site/views/product/view.html.php b/src/com_digicom/site/views/product/view.html.php
index e48fa481..a1b93dc7 100644
--- a/src/com_digicom/site/views/product/view.html.php
+++ b/src/com_digicom/site/views/product/view.html.php
@@ -229,9 +229,8 @@ protected function _prepareDocument()
 				$category = $category->getParent();
 
 				if($currentTemplate) continue;
-
 				$catParams = new Registry;
-				$catParams->loadString($category->getParams());
+				$catParams->loadString($category->params ?? '{}');
 
 				$category_layout = $catParams->get('category_layout','');
 				if(!empty($category_layout)){
diff --git a/src/plg_digicom_pay_paypal/paypal/helper.php b/src/plg_digicom_pay_paypal/paypal/helper.php
index 3bd72a3c..c2c162b0 100644
--- a/src/plg_digicom_pay_paypal/paypal/helper.php
+++ b/src/plg_digicom_pay_paypal/paypal/helper.php
@@ -25,8 +25,16 @@ class plgDigiCom_PayPaypalHelper
     * @secure_post = if you want https
     * @sandbox = if you use sandbox or demo or dev mode
     */
-    public static function buildPaymentSubmitUrl($secure_post = true, $sandbox = false)
+    public static function buildPaymentSubmitUrl($secure_post, $sandbox)
     {
+        if(empty($secure_post)){
+            $secure_post = true;
+        }
+
+        if(empty($sandbox)){
+            $sandbox = false;
+        }
+
         $url = $sandbox ? 'www.sandbox.paypal.com' : 'www.paypal.com';
         if ($secure_post) {
             $url = 'https://'.$url.'/cgi-bin/webscr';
@@ -106,8 +114,13 @@ public static function Storelog($name, $data)
      *
      * @since   1.0.0
      */
-    public static function validateIPN($data, $sandbox = false, $params, $componentName = 'digicom')
+    public static function validateIPN($data, $sandbox, $params, $componentName = 'digicom')
     {
+        if(empty($sandbox)){
+            $sandbox = false;
+        }
+
+
         $url    = plgDigiCom_PayPaypalHelper::buildIPNPaymentUrl(true, $sandbox);
 
         // STEP 1: read POST data
@@ -216,8 +229,12 @@ public static function validateIPN($data, $sandbox = false, $params, $componentN
      *
      * @since   1.0.0
      */
-    public function validateIPN_x($data, $sandbox = false, $params, $componentName = 'digicom')
+    public function validateIPN_x($data, $sandbox, $params, $componentName = 'digicom')
     {
+        if(empty($sandbox)){
+            $sandbox = false;
+        }
+
         $version    = new \JVersion;
         $httpOption = new \Joomla\Registry\Registry;
         $status     = true;