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Opencart. Ошибки при выводе категорий 3го уровня.  Работа через тим вьювер. либо кусок исправленного кода

Notice: Undefined index: category_id in Z:\home\max-mani.ru\www\catalog\view\theme\theme336\template\common\header.tpl on line 152
Notice: Undefined variable: child_id in Z:\home\max-mani.ru\www\catalog\view\theme\theme336\template\common\header.tpl on line 153
Notice: Undefined index: children3 in Z:\home\max-mani.ru\www\catalog\view\theme\theme336\template\common\header.tpl on line 158

код- вывода

<?php foreach ($categories as $category) { ?>
<li <?php if ($category['children']) { ?>class="parent"<?php } ?>><a href="<?php echo $category['href']; ?>"><?php echo $category['name']; ?></a>
<?php if ($category['children']) { ?>

<?php for ($i = 0; $i < count($category['children']);) { ?>
<ul>
<?php $j = $i + ceil(count($category['children']) / $category['column']); ?>
<?php for (; $i < $j; $i++) { ?>
<?php if (isset($category['children'][$i])) { ?>
 152 строка <?php $id=$category['children'][$i]['category_id'];?>
153 строка<?php if ( $id == $child_id) { ?>
<li class="active<?php if ($category['children'][$i]['children3']) {?> parent<?php } ?>">
<?php } else { ?>
<li <?php if ($category['children'][$i]['children3']) {?>class="parent"<?php } ?>>
<?php } ?>
158 строка <?php if ($category['children'][$i]['children3']) {?>
<a href="<?php echo $category['children'][$i]['href']; ?>"><?php echo $category['children'][$i]['name'];?></a>
<ul>
<?php foreach ($category['children'][$i]['children3'] as $ch3) { ?>
<li>
<?php if ($ch3['category_id'] == $ch3_id) { ?>
<a href="<?php echo $ch3['href']; ?>" class="active"><?php echo $ch3['name']; ?></a>
<?php } else { ?>
<a href="<?php echo $ch3['href']; ?>"><?php echo $ch3['name']; ?></a>
<?php } ?>
</li>
<?php } ?>
</ul>
<?php } else {?>
<a href="<?php echo $category['children'][$i]['href']; ?>"><?php echo $category['children'][$i]['name'];?></a>
<?php }?>
</li>
<?php } ?>
<?php } ?>
</ul>
<?php } ?>

код контролера

$this->load->model('catalog/category');

$this->load->model('catalog/product');

$this->data['categories'] = array();

$categories = $this->model_catalog_category->getCategories(0);

foreach ($categories as $category) {
if ($category['top']) {
// Level 2
$children_data = array();

$children = $this->model_catalog_category->getCategories($category['category_id']);

foreach ($children as $child) {
$data = array(
'filter_category_id'  => $child['category_id'],
'filter_sub_category' => true
);

$product_total = $this->model_catalog_product->getTotalProducts($data);

$children_data[] = array(
'name'  => $child['name'] . ($this->config->get('config_product_count') ? ' (' . $product_total . ')' : ''),
'href'  => $this->url->link('product/category', 'path=' . $category['category_id'] . '_' . $child['category_id'])
);
}

// Level 1
$this->data['categories'][] = array(
'name'     => $category['name'],
'children' => $children_data,
'column'   => $category['column'] ? $category['column'] : 1,
'href'     => $this->url->link('product/category', 'path=' . $category['category_id'])
);
}
}