Fatal error: Uncaught ArgumentCountError: Too few arguments to function Cornerstone_Element_Front_End::begin_excerpt(), 1 passed in /homepages/12/d362675277/htdocs/cms/wp-includes/class-wp-hook.php on line 292 and exactly 2 expected in /homepages/12/d362675277/htdocs/cms/wp-content/plugins/cornerstone/includes/classes/elements/class-element-front-end.php:49 Stack trace: #0 /homepages/12/d362675277/htdocs/cms/wp-includes/class-wp-hook.php(292): Cornerstone_Element_Front_End->begin_excerpt('Am 30. Septembe...') #1 /homepages/12/d362675277/htdocs/cms/wp-includes/plugin.php(212): WP_Hook->apply_filters('Am 30. Septembe...', Array) #2 /homepages/12/d362675277/htdocs/cms/wp-content/plugins/twitter/src/Twitter/WordPress/Cards/Generator.php(396): apply_filters('get_the_excerpt', 'Am 30. Septembe...') #3 /homepages/12/d362675277/htdocs/cms/wp-content/plugins/twitter/src/Twitter/WordPress/Cards/Generator.php(166): Twitter\WordPress\Cards\Generator::buildPostCard() #4 /homepages/12/d362675277/htdocs/cms/wp-content/plugins/twitter/sr in /homepages/12/d362675277/htdocs/cms/wp-content/plugins/cornerstone/includes/classes/elements/class-element-front-end.php on line 49