Fatal error: Uncaught TypeError: {closure}(): Argument #1 ($content) must be of type string, null given, called in /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/class-wp-hook.php on line 326 and defined in /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/interactivity-api/interactivity-api.php:46 Stack trace: #0 /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/class-wp-hook.php(326): {closure}(NULL, Array) #1 /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/plugin.php(205): WP_Hook->apply_filters(NULL, Array) #2 /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/class-wp-block.php(525): apply_filters('render_block_co...', NULL, Array, Object(WP_Block)) #3 /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/class-wp-block.php(443): WP_Block->render() #4 /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/blocks.php(1705): WP_Block->render() #5 /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/blocks.php(1743): render_block(Array) #6 /home/httpd/vhosts/forstverein-see.ch/httpdocs/neu/wp-includes/class-wp-hook.php(324): do_blocks('