Fatal error: Uncaught ArgumentCountError: Too few arguments to function append_category(), 1 passed in /var/www/sites/quantenmed.at/wp-includes/class-wp-hook.php on line 300 and exactly 4 expected in /var/www/sites/quantenmed.at/wp-content/themes/Avada/functions.php:1091 Stack trace: #0 /var/www/sites/quantenmed.at/wp-includes/class-wp-hook.php(300): append_category('<span class="tr...') #1 /var/www/sites/quantenmed.at/wp-includes/plugin.php(203): WP_Hook->apply_filters('<span class="tr...', Array) #2 /var/www/sites/quantenmed.at/wp-content/plugins/the-events-calendar/src/functions/template-tags/general.php(1064): apply_filters('tribe_events_ev...', '<span class="tr...', 5090, '', '') #3 /var/www/sites/quantenmed.at/wp-content/plugins/the-events-calendar-shortcode/the-events-calendar-shortcode.php(352): tribe_events_event_schedule_details() #4 /var/www/sites/quantenmed.at/wp-includes/shortcodes.php(345): Events_Calendar_Shortcode->ecs_fetch_events(Array, '', 'ecs-list-events') #5 [internal function]: do_shortcode_tag(Arra in /var/www/sites/quantenmed.at/wp-content/themes/Avada/functions.php on line 1091