Warning: Attempt to read property "ID" on null in /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-content/plugins/events-manager/classes/em-taxonomy-frontend.php on line 51

Fatal error: Uncaught Error: Attempt to assign property "post_title" on null in /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-content/plugins/events-manager/classes/em-taxonomy-frontend.php:52 Stack trace: #0 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-content/plugins/events-manager/classes/em-categories-frontend.php(20): EM_Taxonomy_Frontend::template('') #1 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-includes/class-wp-hook.php(309): EM_Categories_Frontend::template('') #2 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-includes/plugin.php(191): WP_Hook->apply_filters('', Array) #3 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-includes/template.php(103): apply_filters('taxonomy_templa...', '', 'taxonomy', Array) #4 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-includes/template.php(364): get_query_template('taxonomy', Array) #5 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-includes/template-loader.php(81): get_taxonomy_template() #6 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-blog-header.php(19): require_once('/homepages/27/d...') #7 /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/index.php(17): require('/homepages/27/d...') #8 {main} thrown in /homepages/27/d338821288/htdocs/clickandbuilds/Brunnenviertel/wp-content/plugins/events-manager/classes/em-taxonomy-frontend.php on line 52