Warning: array_merge() expects at least 1 parameter, 0 given in /homepages/u57292/wordpress/wp2019/wendeschleife/wp-content/plugins/the-events-calendar/src/Events/Custom_Tables/V1/WP_Query/Repository/Custom_Tables_Query_Filters.php on line 467
Warning: implode(): Invalid arguments passed in /homepages/u57292/wordpress/wp2019/wendeschleife/wp-content/plugins/the-events-calendar/src/Events/Custom_Tables/V1/WP_Query/Repository/Custom_Tables_Query_Filters.php on line 467
Fatal error: Uncaught TypeError: Return value of TEC\Events\Custom_Tables\V1\WP_Query\Repository\Custom_Tables_Query_Filters::deduplicate_joins() must be of the type string, null returned in /homepages/u57292/wordpress/wp2019/wendeschleife/wp-content/plugins/the-events-calendar/src/Events/Custom_Tables/V1/WP_Query/Repository/Custom_Tables_Query_Filters.php:467
Stack trace:
#0 /homepages/u57292/wordpress/wp2019/wendeschleife/wp-content/plugins/the-events-calendar/src/Events/Custom_Tables/V1/WP_Query/Repository/Custom_Tables_Query_Filters.php(226): TEC\Events\Custom_Tables\V1\WP_Query\Repository\Custom_Tables_Query_Filters->deduplicate_joins(' INNER JOIN wpw...')
#1 /homepages/u57292/wordpress/wp2019/wendeschleife/wp-includes/class-wp-hook.php(308): TEC\Events\Custom_Tables\V1\WP_Query\Repository\Custom_Tables_Query_Filters->filter_posts_join(' INNER JOIN wpw...', Object(TEC\Events\Custom_Tables\V1\WP_Query\Custom_Tables_Query))
#2 /homepages/u57292/wordpress/wp2019/wendeschleife/wp-includes/plugin.php(256): WP_Hook->apply_ in /homepages/u57292/wordpress/wp2019/wendeschleife/wp-content/plugins/the-events-calendar/src/Events/Custom_Tables/V1/WP_Query/Repository/Custom_Tables_Query_Filters.php on line 467