diff --git a/Theme/Backend/groups-single.tpl.php b/Theme/Backend/groups-single.tpl.php
index a3b1030..3d9e63e 100755
--- a/Theme/Backend/groups-single.tpl.php
+++ b/Theme/Backend/groups-single.tpl.php
@@ -127,7 +127,6 @@
                                     <tr><td colspan="2" class="empty"><?= $this->getHtml('Empty', '0', '0'); ?>
                                 <?php endif; ?>
                         </table>
-                        <div class="portlet-foot"></div>
                     </div>
                 </div>
             </div>
@@ -269,12 +268,12 @@
                                         <td><a href="#"><i class="fa fa-times"></i></a>
                                         <td><i class="fa fa-cogs update btn"></i>
                                         <td><?= $value->id; ?>
-                                        <td data-tpl-text="/unit" data-tpl-value="/unit"><?= $this->printHtml($value->unit); ?>
-                                        <td data-tpl-text="/app" data-tpl-value="/app"><?= $this->printHtml($value->app); ?>
+                                        <td data-tpl-text="/unit" data-tpl-value="/unit"><?= $this->printHtml((string) $value->unit); ?>
+                                        <td data-tpl-text="/app" data-tpl-value="/app"><?= $this->printHtml((string) $value->app); ?>
                                         <td data-tpl-text="/module" data-tpl-value="/module"><?= $this->printHtml($value->module); ?>
-                                        <td data-tpl-text="/type" data-tpl-value="/type"><?= $this->printHtml($value->category); ?>
-                                        <td data-tpl-text="/ele" data-tpl-value="/ele"><?= $this->printHtml($value->element); ?>
-                                        <td data-tpl-text="/comp" data-tpl-value="/comp"><?= $this->printHtml($value->component); ?>
+                                        <td data-tpl-text="/type" data-tpl-value="/type"><?= $this->printHtml((string) $value->category); ?>
+                                        <td data-tpl-text="/ele" data-tpl-value="/ele"><?= $this->printHtml((string) $value->element); ?>
+                                        <td data-tpl-text="/comp" data-tpl-value="/comp"><?= $this->printHtml((string) $value->component); ?>
                                         <td>
                                             <?php if ((PermissionType::CREATE | $permission) === $permission) : ?>
                                                 <span data-tpl-text="/perm/c" data-tpl-value="/perm/c" data-value="<?= PermissionType::CREATE; ?>">C</span>