Fatal error: Uncaught ArgumentCountError: Too few arguments to function gvo_get_member_by_aktion(), 1 passed in /homepages/40/d31689978/htdocs/gvo2018/wp-content/themes/gvo2018/includes/gvo-member-functions.php on line 156 and exactly 3 expected in /homepages/40/d31689978/htdocs/gvo2018/wp-content/themes/gvo2018/includes/gvo-member-functions.php:4 Stack trace: #0 /homepages/40/d31689978/htdocs/gvo2018/wp-content/themes/gvo2018/includes/gvo-member-functions.php(156): gvo_get_member_by_aktion('gutschein_aktio...') #1 /homepages/40/d31689978/htdocs/gvo2018/wp-includes/shortcodes.php(355): gvo_teilnehmer_gutscheinaktion('', '', 'member_gutschei...') #2 [internal function]: do_shortcode_tag(Array) #3 /homepages/40/d31689978/htdocs/gvo2018/wp-includes/shortcodes.php(227): preg_replace_callback('/\\[(\\[?)(member...', 'do_shortcode_ta...', '<h1>Gutschein A...') #4 /homepages/40/d31689978/htdocs/gvo2018/wp-includes/class-wp-hook.php(308): do_shortcode('<h1>Gutschein A...') #5 /homepages/40/d31689978/htdocs/gvo2018/wp-includes/plugin.php(205): WP_Hook->apply_filters('<h1>Gutschein A...', Array) #6 /homepages/40/d31689978/htdocs/gvo2018/wp-includes/post-template.php(255): apply_filters('the_content', '<h1>Gutschein A...') #7 /homepages/40/d31689978/htdocs/gvo2018/wp-content/themes/gvo2018/page.php(10): the_content() #8 /homepages/40/d31689978/htdocs/gvo2018/wp-includes/template-loader.php(106): include('/homepages/40/d...') #9 /homepages/40/d31689978/htdocs/gvo2018/wp-blog-header.php(19): require_once('/homepages/40/d...') #10 /homepages/40/d31689978/htdocs/gvo2018/index.php(17): require('/homepages/40/d...') #11 {main} thrown in /homepages/40/d31689978/htdocs/gvo2018/wp-content/themes/gvo2018/includes/gvo-member-functions.php on line 4