Fatal error: Uncaught ValueError: Unknown format specifier "a" in /www/htdocs/w01e4454/anjappar-berlin.de/wp-content/plugins/quandoo-restaurant-reservations/classes/class-quandoo-reservation-post-type.php:46 Stack trace: #0 /www/htdocs/w01e4454/anjappar-berlin.de/wp-content/plugins/quandoo-restaurant-reservations/classes/class-quandoo-reservation-post-type.php(46): sprintf('Search %a', 'Widgets') #1 /www/htdocs/w01e4454/anjappar-berlin.de/wp-includes/class-wp-hook.php(324): Quandoo_Reservation_Post_Type->register_post_type('') #2 /www/htdocs/w01e4454/anjappar-berlin.de/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #3 /www/htdocs/w01e4454/anjappar-berlin.de/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #4 /www/htdocs/w01e4454/anjappar-berlin.de/wp-settings.php(727): do_action('init') #5 /www/htdocs/w01e4454/anjappar-berlin.de/wp-config.php(99): require_once('/www/htdocs/w01...') #6 /www/htdocs/w01e4454/anjappar-berlin.de/wp-load.php(50): require_once('/www/htdocs/w01...') #7 /www/htdocs/w01e4454/anjappar-berlin.de/wp-blog-header.php(13): require_once('/www/htdocs/w01...') #8 /www/htdocs/w01e4454/anjappar-berlin.de/index.php(17): require('/www/htdocs/w01...') #9 {main} thrown in /www/htdocs/w01e4454/anjappar-berlin.de/wp-content/plugins/quandoo-restaurant-reservations/classes/class-quandoo-reservation-post-type.php on line 46