Dashboard not working because of JEM quickicon

<?php /** * @version 4.0.0 * @package JEM * @copyright (C) 2013-2023 joomlaeventmanager.net * @copyright (C) 2005-2009 Christoph Lukes * @license https://www.gnu.org/licenses/gpl-3.0 GNU/GPL * * Plugin based on the Joomla! update notification plugin */ defined('_JEXEC') or die; /** * JEM Quickicon Plugin * */ class plgQuickiconJEMquickicon extends JPlugin { public function __construct(&$subject, $config) { parent::__construct($subject, $config); } public function onGetIcons($context) { if ($context != $this->params->get('context', 'mod_quickicon') || !JFactory::getUser()->authorise('core.manage', 'com_jem') || !file_exists(JPATH_ADMINISTRATOR . '/components/com_jem/helpers/helper.php')) { return; } $useIcons = version_compare(JVERSION, '3.0', '>'); $icon = 'com_jem/icon-48-home.png'; // which means '/media/com_jem/images/icon-48-home.png' $text = $this->params->get('displayedtext'); if (empty($text)) { $text = Text::_('JEM-Events'); } return array( array( 'link' => 'index.php?option=com_jem', 'image' => 'calendar', 'icon' => '', 'text' => $text, 'id' => 'plg_quickicon_jemquickicon', 'group' => 'JEM' ) ); } }