MySQL（Joomla） - 未知专栏

Question

我已将我的一个组件从我的一个网站迁移到另一个网站。它们是相同的版本，除了我在下面列出的两个错误外，一切看起来都很好。

Unknown column 'a.downloads' in 'where clause' SQL=SELECT a.*,c.cid AS category, c.name AS category_name 
FROM ve63d_joomgallery AS a LEFT JOIN ve63d_joomgallery_catg AS c ON c.cid = a.catid 
WHERE a.published = 1 AND a.approved = 1 AND a.downloads > 0 ORDER BY a.downloads desc LIMIT 0, 5

另一个是：

 Unknown column 'c.password' in 'where clause' SQL=SELECT c.cid, c.parent_id, c.name, c.access, c.published, c.hidden, c.owner
 FROM ve63d_joomgallery_catg AS c WHERE lft > 0 AND c.published = 1 AND c.access IN (1,1) AND (c.password = '' OR c.cid IN (0)) ORDER BY c.lft

如何修复这些表？