Fatal error: Uncaught TypeError: Argument 1 passed to WordPress\Plugin\Encyclopedia\Content_Filter::addCrossLinks() must be of the type string, null given, called in /www/htdocs/w0146a33/innovativeit.de/wp-includes/class-wp-hook.php on line 287 and defined in /www/htdocs/w0146a33/innovativeit.de/wp-content/plugins/encyclopedia-lexicon-glossary-wiki-dictionary/classes/content-filter.php:53
Stack trace:
#0 /www/htdocs/w0146a33/innovativeit.de/wp-includes/class-wp-hook.php(287): WordPress\Plugin\Encyclopedia\Content_Filter::addCrossLinks(NULL)
#1 /www/htdocs/w0146a33/innovativeit.de/wp-includes/plugin.php(206): WP_Hook->apply_filters(NULL, Array)
#2 /www/htdocs/w0146a33/innovativeit.de/wp-includes/formatting.php(3823): apply_filters('the_content', '')
#3 /www/htdocs/w0146a33/innovativeit.de/wp-includes/class-wp-hook.php(287): wp_trim_excerpt('', Object(WP_Post))
#4 /www/htdocs/w0146a33/innovativeit.de/wp-includes/plugin.php(206): WP_Hook->apply_filters('', Array)
#5 /www/htdocs/w0146a33/innovativeit.de/wp-includes/post-templ in /www/htdocs/w0146a33/innovativeit.de/wp-content/plugins/encyclopedia-lexicon-glossary-wiki-dictionary/classes/content-filter.php on line 53