Fatal error: Uncaught Error: [] operator not supported for strings in /hp/zy/aa/bf/www/fluechtlinge/wp-content/plugins/events-maker/includes/class-query.php:551 Stack trace: #0 /hp/zy/aa/bf/www/fluechtlinge/wp-includes/class-wp-hook.php(286): Events_Maker_Query->pre_get_posts(Object(WP_Query)) #1 /hp/zy/aa/bf/www/fluechtlinge/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #2 /hp/zy/aa/bf/www/fluechtlinge/wp-includes/plugin.php(515): WP_Hook->do_action(Array) #3 /hp/zy/aa/bf/www/fluechtlinge/wp-includes/class-wp-query.php(1629): do_action_ref_array('pre_get_posts', Array) #4 /hp/zy/aa/bf/www/fluechtlinge/wp-includes/class-wp-query.php(3225): WP_Query->get_posts() #5 /hp/zy/aa/bf/www/fluechtlinge/wp-includes/post.php(1836): WP_Query->query(Array) #6 /hp/zy/aa/bf/www/fluechtlinge/wp-content/plugins/events-maker/includes/class-ical.php(115): get_posts(Array) #7 /hp/zy/aa/bf/www/fluechtlinge/wp-content/plugins/events-maker/includes/class-ical.php(55): Events_Maker_iCal->generate_ical_feed('post_type', 'e in /hp/zy/aa/bf/www/fluechtlinge/wp-content/plugins/events-maker/includes/class-query.php on line 551