diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7e4577..f1b3e56 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,13 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
-
-### Added
-
-* Add custom summary via shortcodes
-
-## [0.3.2] - 2024-12-12
+## [0.3.3] - 2024-12-19
 
 * Initial release on WordPress.org
 
diff --git a/README.md b/README.md
index 83c871f..9543da5 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 **Tags:** events, fediverse, activitypub, calendar  
 **Requires at least:** 6.5  
 **Tested up to:** 6.7  
-**Stable tag:** 0.3.2  
+**Stable tag:** 0.3.3  
 **Requires PHP:** 7.4  
 **License:** AGPL-3.0-or-later  
 **License URI:** https://www.gnu.org/licenses/agpl-3.0.html  
@@ -102,7 +102,7 @@ We're always interested in your feedback. Feel free to reach out to us via [E-Ma
 
 ## Changelog ##
 
-### [0.3.2] 2024-12-12 ###
+### [0.3.3] 2024-12-19 ###
 
 * Initial release on https://wordpress.org/
 
diff --git a/event-bridge-for-activitypub.php b/event-bridge-for-activitypub.php
index ec9cfad..f1ce6b3 100644
--- a/event-bridge-for-activitypub.php
+++ b/event-bridge-for-activitypub.php
@@ -3,7 +3,7 @@
  * Plugin Name:  Event Bridge for ActivityPub
  * Description:  Integrating popular event plugins with the ActivityPub plugin.
  * Plugin URI:   https://event-federation.eu/
- * Version:      0.3.2
+ * Version:      0.3.3
  * Author:       André Menrath
  * Author URI:   https://graz.social/@linos
  * Text Domain:  event-bridge-for-activitypub
diff --git a/includes/admin/class-general-admin-notices.php b/includes/admin/class-general-admin-notices.php
index a58c2c4..ee7f886 100644
--- a/includes/admin/class-general-admin-notices.php
+++ b/includes/admin/class-general-admin-notices.php
@@ -29,7 +29,7 @@ class General_Admin_Notices {
 	 */
 	const ACTIVITYPUB_PLUGIN_URL = 'https://wordpress.org/plugins/activitypub';
 
-	const EVENT_BRIDGE_FOR_ACTIVITYPUB_SUPPORTED_EVENT_PLUGINS_URL = 'https://code.event-federation.eu/Event-Federation/wordpress-event-bridge-for-activitypub#events-plugin-that-will-be-supported-at-first';
+	const EVENT_BRIDGE_FOR_ACTIVITYPUB_SUPPORTED_EVENT_PLUGINS_URL = 'https://code.event-federation.eu/Event-Federation/wordpress-event-bridge-for-activitypub#supported-event-plugins';
 
 	/**
 	 * Allowed HTML for admin notices.
@@ -38,8 +38,9 @@ class General_Admin_Notices {
 	 */
 	const ALLOWED_HTML = array(
 		'a' => array(
-			'href'  => true,
-			'title' => true,
+			'href'   => true,
+			'title'  => true,
+			'target' => true,
 		),
 		'br',
 		'i',
@@ -90,11 +91,11 @@ class General_Admin_Notices {
 			/* translators: 1: An URL to the list of supported event plugins. */
 			_x(
 				'The Plugin <i>Event Bridge for ActivityPub</i> is of no use, because you do not have installed and activated a supported Event Plugin.
-				<br> For a list of supported Event Plugins see  <a href="%1$s">here</a>.',
+				<br> For a list of supported Event Plugins see  <a href="%1$s" target="_blank">here</a>.',
 				'admin notice',
 				'event-bridge-for-activitypub'
 			),
-			esc_html( self::EVENT_BRIDGE_FOR_ACTIVITYPUB_SUPPORTED_EVENT_PLUGINS_URL )
+			esc_url( self::EVENT_BRIDGE_FOR_ACTIVITYPUB_SUPPORTED_EVENT_PLUGINS_URL )
 		);
 	}
 
diff --git a/includes/admin/class-health-check.php b/includes/admin/class-health-check.php
index 45d4ea0..07c0a95 100644
--- a/includes/admin/class-health-check.php
+++ b/includes/admin/class-health-check.php
@@ -116,7 +116,10 @@ class Health_Check {
 		if ( ! $event_post_type ) {
 			$active_event_plugins = Setup::get_instance()->get_active_event_plugins();
 			$active_event_plugin  = reset( $active_event_plugins );
-			$event_post_type      = $active_event_plugin->get_post_type();
+			if ( ! $active_event_plugin ) {
+				return false;
+			}
+			$event_post_type = $active_event_plugin->get_post_type();
 		}
 
 		$args = array(
diff --git a/readme.txt b/readme.txt
index 35b33d0..fb93cf9 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@ Contributors: andremenrath
 Tags: events, fediverse, activitypub, calendar
 Requires at least: 6.5
 Tested up to: 6.7
-Stable tag: 0.3.2
+Stable tag: 0.3.3
 Requires PHP: 7.4
 License: AGPL-3.0-or-later
 License URI: https://www.gnu.org/licenses/agpl-3.0.html
@@ -96,6 +96,6 @@ We're always interested in your feedback. Feel free to reach out to us via [E-Ma
 
 == Changelog ==
 
-= [0.3.2] 2024-12-12 =
+= [0.3.3] 2024-12-19 =
 
 * Initial release on https://wordpress.org/
diff --git a/templates/welcome.php b/templates/welcome.php
index 503df4f..c6c3567 100644
--- a/templates/welcome.php
+++ b/templates/welcome.php
@@ -9,6 +9,7 @@
 defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
 
 use Event_Bridge_For_ActivityPub\Setup;
+use Event_Bridge_For_ActivityPub\Admin\General_Admin_Notices;
 use Event_Bridge_For_ActivityPub\Admin\Settings_Page;
 use Event_Bridge_For_ActivityPub\Admin\Health_Check;
 
@@ -41,6 +42,12 @@ WP_Filesystem();
 	<div class="box">
 		<h2><?php \esc_html_e( 'Status', 'event-bridge-for-activitypub' ); ?></h2>
 		<p><?php \esc_html_e( 'The Event Bridge for ActivityPub detected the following (activated) event plugins:', 'event-bridge-for-activitypub' ); ?></p>
+			<?php
+			if ( empty( $active_event_plugins ) ) {
+				$notice = General_Admin_Notices::get_admin_notice_no_supported_event_plugin_active();
+			}
+			echo '<p>⚠' . \wp_kses( $notice, General_Admin_Notices::ALLOWED_HTML ) . '</p>';
+			?>
 			<?php foreach ( $active_event_plugins as $active_event_plugin ) { ?>
 			<h3><?php echo esc_html( $active_event_plugin->get_plugin_name() ); ?>:</h3>
 			<ul class="event-bridge-for-activitypub-list">
diff --git a/tests/test-class-plugin-gatherpress.php b/tests/test-class-plugin-gatherpress.php
index 9a7a076..a3fb55e 100644
--- a/tests/test-class-plugin-gatherpress.php
+++ b/tests/test-class-plugin-gatherpress.php
@@ -56,7 +56,7 @@ class Test_GatherPress extends WP_UnitTestCase {
 		$params  = array(
 			'datetime_start' => '+10 days 15:00:00',
 			'datetime_end'   => '+10 days 16:00:00',
-			'timezone'       => 'America/New_York',
+			'timezone'       => \wp_timezone_string(),
 		);
 
 		$event->save_datetimes( $params );
@@ -85,7 +85,7 @@ class Test_GatherPress extends WP_UnitTestCase {
 		$params  = array(
 			'datetime_start' => '+10 days 15:00:00',
 			'datetime_end'   => '+10 days 16:00:00',
-			'timezone'       => 'America/New_York',
+			'timezone'       => \wp_timezone_string(),
 		);
 		$event->save_datetimes( $params );