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Thanks, will check it out 👍

Hi,

I noticed a PHP warning in Osclass 8.4 while editing/saving an email template in the backoffice.

The following warning was logged 4 times during the same action:

```text
PHP Warning: Undefined array key "i_order" in
/oc-includes/osclass/model/Page.php on line 357
```

Line 357 is inside `Page::deleteByPrimaryKey()`:

```php
public function deleteByPrimaryKey($id) {
    $row = $this->findByPrimaryKey($id);
    $order = $row['i_order'];

    $this->reOrderPages($order);

    $this->dao->delete($this->getDescriptionTableName(), array('fk_i_pages_id' => $id));
    return $this->dao->delete($this->tableName, array('pk_i_id' => $id));
}
```

It looks like `findByPrimaryKey($id)` can return an empty array (or a row without `i_order`), while `deleteByPrimaryKey()` assumes that `i_order` is always present.

The warning appeared immediately after I edited/saved an email template in the backoffice. The template itself appears to have been saved correctly and I have not noticed any other problem.

So this does not seem critical, but it may be an edge case in the new 8.4 page/order handling or email-template cleanup.

Just reporting it in case it is useful. 🙂

it's removed feature, update theme.

ok

I would recommend - remove data older then 1 year in this table and then retry.
Stats table can be large and osclass 8.4 adds automatic cleanup of old data (but it also redesign that table and add many columns to support various stats)