错误：
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /homepages/42/d295195903/htdocs/Joomla/administrator/
components/com_comment/toolbar.comment.html.php on line 29

解决方法：

将29行的代码替换

function existsAkoTable()
{
JFactory::getDBO()->setQuery();
}


替换为：


function existsAkoTable()
{
$database = JFactory::getDBO();
$database->setQuery('');
}