diff --git a/application/modules/default/views/scripts/explore/partials/filter.phtml b/application/modules/default/views/scripts/explore/partials/filter.phtml
index 1c7e1911a..545b9be85 100644
--- a/application/modules/default/views/scripts/explore/partials/filter.phtml
+++ b/application/modules/default/views/scripts/explore/partials/filter.phtml
@@ -1,154 +1,154 @@
 <?php
 /**
  *  ocs-webserver
  *
  *  Copyright 2016 by pling GmbH.
  *
  *    This file is part of ocs-webserver.
  *
  *    This program is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU Affero General Public License as
  *    published by the Free Software Foundation, either version 3 of the
  *    License, or (at your option) any later version.
  *
  *    This program is distributed in the hope that it will be useful,
  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU Affero General Public License for more details.
  *
  *    You should have received a copy of the GNU Affero General Public License
  *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
 $modelCategory = new Default_Model_ProjectCategory();
 
 $isTagGroupFilter = false;
 $filter = Zend_Registry::isRegistered('config_store_tags') ?  Zend_Registry::get('config_store_tags') : null;
 
 if(isset($this->tag_group_filter)) {
     foreach ($this->tag_group_filter as $key => $value) {
         if($value != null && $this->tag_group_filter != "0") {
             $isTagGroupFilter = true;
         }
     }
 }
 
-if($isTagGroupFilter) {
+if($isTagGroupFilter == true) {
     $this->categories = $modelCategory->fetchTreeForViewForProjectTagGroupTags($filter, $this->tag_group_filter);
 } else if($this->filter_mode=='filter_favourites')
 {
     $this->categories = $modelCategory->fetchTreeForViewForProjectFavourites();
 }else{
     $this->categories = $modelCategory->fetchTreeForView();
 }
 $jsonTree = json_encode($this->categories);
 $helperUserRole = new Backend_View_Helper_UserRole();
 $userRoleName = $helperUserRole->userRole();
 ?>
 <style type="text/css">
 
     #category-tree input[type="text"] { width:calc(100% - 55px) !important; }
 
     .naviblock {
         list-style-type: none;
         margin: 0;
         padding: 0;
         width: 100%;
         font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
         font-size: 12px;
         border: none;
         width: 100%;
         color: #2673b0;
     }
 
     .navilink {
         color: #2673b0;
         margin: 0;
         padding: 3px 0 0 10px;
     }
 
     .navilink span.title:hover {
         font-weight: bold;
         cursor: pointer;
     }
 
     ul.naviblock a:hover {
         background-color: <?=$this->navBackgroundColorActive?> !important;
         color: <?=$this->navColorActive?> !important;
     }
 
     ul.naviblock a {
         display: block;
         width: 100%;
     }
 
     li.navilink.parentactive.parent a {
         color: <?=$this->navBackgroundColorActive?>;
     }
 
     ul.naviblock a.active.child {
         background-color: <?=$this->navBackgroundColorActive?>;
         color: <?=$this->navColorActive?>;
     }
 
     li.navilink.active.parent a.active.parent,
     #category-tree-container #category-tree ul li.active > a,
     #category-tree-container #category-tree ul li a:hover,
     #category-tree #category-tree-header a {
         background-color: <?=$this->navBackgroundColorActive?> !important;
         color: <?=$this->navColorActive?> !important;
     }
 
     li.navilink span.cat-title {
         display: inline-block;
         white-space: nowrap;
         overflow: hidden;
         text-overflow: ellipsis;
         width: 75%;
         vertical-align: middle;
         padding-left: 3px;
     }
 
     li.navilink span.product-counter {
         display: inline-block;
         vertical-align: middle;
         text-align: end;
         width: 20%;
     }
 </style>
 <link rel="stylesheet" href="/theme/react/assets/css/cat-tree.css"/>
 <div id="category-tree-container"></div>
 <script type="application/javascript">
     var catTree = <?= $jsonTree ?>;
     <?php
     $catIdExists = isset($this->cat_id) ? $this->cat_id : "null";
     echo "var categoryId = {$catIdExists};";
     
     $store_config = Zend_Registry::get('store_config');
     $is_show_real_domain_as_url = $store_config->is_show_real_domain_as_url;
     echo "var is_show_real_domain_as_url = $is_show_real_domain_as_url;";
     echo "var cat_tree_filter = '$this->filter_mode';";
     
     $tagGroupFilter  = Zend_Registry::isRegistered('config_store_taggroups') ? Zend_Registry::get('config_store_taggroups') : null;
     $tagGroupHelper = new Default_View_Helper_FetchTagsForTagGroup();
 
     if(!empty($tagGroupFilter)) {
         $tagGroupArray = array();
         
         foreach ($tagGroupFilter as $tagGroup ) {
             $tags = $tagGroupHelper->fetchList($tagGroup);
             $select = $this->tag_group_filter[$tagGroup];
             $tagGroupArray[$tagGroup]['tags'] = $tags;
             $tagGroupArray[$tagGroup]['selected_tag'] = $select;
         }
         echo "var tag_group_filter = " . json_encode($tagGroupArray) . ";";
     } else {
         echo "var tag_group_filter = null;";
     }
     
     
     
     ?>
 </script>
 <script type="application/javascript" src="/theme/react/category-tree/category-tree.js"></script>