<br />
<b>Fatal error</b>:  Uncaught PrestaShopDatabaseException: Can't create/write to file '/var/tmp/#sql_448_0.MAD' (Errcode: 28 &quot;No space left on device&quot;)&lt;br /&gt;&lt;br /&gt;&lt;pre&gt;
				SELECT c.*, cl.*
				FROM `ps_category` c
				 INNER JOIN ps_category_shop category_shop
        ON (category_shop.id_category = c.id_category AND category_shop.id_shop = 1)
				LEFT JOIN `ps_category_lang` cl ON c.`id_category` = cl.`id_category` AND cl.id_shop = 1 
				LEFT JOIN `ps_category_group` cg ON c.`id_category` = cg.`id_category`
				RIGHT JOIN `ps_category` c2 ON c2.`id_category` = 21 AND c.`nleft` &gt;= c2.`nleft` AND c.`nright` &lt;= c2.`nright`
				WHERE 1  AND `id_lang` = 1
				 AND c.`active` = 1
				 AND cg.`id_group` IN (1)
				 GROUP BY c.`id_category`
				 ORDER BY c.`level_depth` ASC, category_shop.`position` ASC
				
				&lt;/pre&gt; in /home/greenvn/public_html/classes/db/Db.php:773
Stack trace:
#0 /home/greenvn/public_html/classes/db/Db.php(385): DbCore-&gt;displayError()
#1 /home/greenvn/public_html/classes/db/Db.php(614): DbCore-&gt;query()
#2 /home/g in <b>/home/greenvn/public_html/classes/Hook.php</b> on line <b>1092</b><br />