Создаю плагин Joomla для JoomShopping, не работает, что я не так делаю? - JoomShopping

<?xml version="1.0" encoding="utf-8"?>
<extension version="3.1" type="plugin" group="jshopping">
	<name>joomshopping_auto_meta_tag</name>
	<author>Dmutry</author>
	<creationDate>08.11.2020</creationDate>
	<copyright>Copyright (C) 2005 - 2013 Open Source Matters. All rights reserved.</copyright>
	<license>GNU General Public License version 2 or later</license>
	<authorEmail>test@joomla.org</authorEmail>
	<authorUrl>www.test.org</authorUrl>
	<version>3.1.0</version>
	<description></description>
	<files>
		<filename plugin="joomshopping_auto_meta_tag">joomshopping_auto_meta_tag.php</filename>
	</files>
</extension>

<?php
defined( '_JEXEC' ) or die( 'Restricted access' );

class plgJshoppingJoomshopping_Auto_Meta_Tag extends JPlugin {
	
	public function onBeforeDisplayCategoryView(&$view){
		var_dump($view);
		echo "Привет, мир!";
	}
}
?>

<?xml version="1.0" encoding="utf-8"?>
<extension version="3.1" type="plugin" group="jshopping">
	<name>joomshoppingautometatag</name>
	<author>Dmutry</author>
	<creationDate>08.11.2020</creationDate>
	<copyright>Copyright (C) 2005 - 2013 Open Source Matters. All rights reserved.</copyright>
	<license>GNU General Public License version 2 or later</license>
	<authorEmail>test@joomla.org</authorEmail>
	<authorUrl>www.test.org</authorUrl>
	<version>3.1.0</version>
	<description></description>
	<files>
		<filename plugin="joomshoppingautometatag">joomshoppingautometatag.php</filename>
	</files>
</extension>

<?php
defined( '_JEXEC' ) or die( 'Restricted access' );

class plgjshoppingjoomshoppingautometatag extends JPlugin {
	
	public function onBeforeDisplayCategoryView(&$view){
		echo "Привет, мир!";
	}
}
?>

<?xml version="1.0" encoding="utf-8"?>
<extension version="3.1" type="plugin" group="jshoppingproducts">
	<name>joomshoppingautometatag</name>
	<author>Dmutry</author>
	<creationDate>08.11.2020</creationDate>
	<copyright>Copyright (C) 2005 - 2013 Open Source Matters. All rights reserved.</copyright>
	<license>GNU General Public License version 2 or later</license>
	<authorEmail>test@joomla.org</authorEmail>
	<authorUrl>www.test.org</authorUrl>
	<version>3.1.0</version>
	<description></description>
	<files>
		<filename plugin="joomshoppingautometatag">joomshoppingautometatag.php</filename>
	</files>
</extension>

<?php
defined( '_JEXEC' ) or die;

class plgjshoppingproductsjoomshoppingautometatag extends JPlugin {
	
	public function onBeforeDisplayCategoryView(&$view){
		var_dump($view);
		echo "Привет, мир!";
	}
}

<?php
defined( '_JEXEC' ) or die;

class plgJshoppingproductsjoomshoppingautometatag extends JPlugin {
function __construct(&$subject, $config){
        parent::__construct($subject, $config);
    }
public function onBeforeDisplayCategoryView(&$view){
var_dump('Привет, мир!');
echo "Привет, мир!";
}
}