K2 ошибка при переносе на SQL - K2

42000
SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'groups ON cat.extraFieldsGroup = groups.id WHERE cat.trash = 0 ORDER BY cat.pare' at line 1

 $queryStart = "/* Backend / K2 / Categories */ SELECT c.*, g.name AS groupname, exfg.name as extra_fields_group
            FROM #__k2_categories as c
            LEFT JOIN #__groups AS g ON g.id = c.access
            [b]LEFT JOIN #__k2_extra_fields_groups AS exfg ON exfg.id = c.extraFieldsGroup[/b]
            WHERE c.id > 0";
        if (K2_JVERSION != '15') {
            $queryStart = JString::str_ireplace('g.name AS groupname', 'g.title AS groupname', $queryStart);
            $queryStart = JString::str_ireplace('#__groups', '#__viewlevels', $queryStart);
        }

LEFT JOIN #__k2_extra_fields_groups AS exfg ON exfg.id = c.extraFieldsGroup

$queryStart = "/* Backend / K2 / Categories */ SELECT c.*, g.name AS groupname, exfg.name as extra_fields_group
            FROM #__k2_categories as c
            LEFT JOIN `#__groups` AS g ON g.id = c.access
            LEFT JOIN `#__k2_extra_fields_groups` AS exfg ON exfg.id = c.extraFieldsGroup
            WHERE c.id > 0";
        if (K2_JVERSION != '15') {
            $queryStart = JString::str_ireplace('g.name AS groupname', 'g.title AS groupname', $queryStart);
            $queryStart = JString::str_ireplace('#__groups', '#__viewlevels', $queryStart);
        }