Warning: Constant WP_MEMORY_LIMIT already defined in /etc/wordpress/config-sport-planer.de.php on line 7

Fatal error: Uncaught Error: Call to undefined function create_function() in /usr/share/wordpress-triteam/wp-includes/pomo/translations.php:208 Stack trace: #0 /usr/share/wordpress-triteam/wp-includes/pomo/translations.php(269): Gettext_Translations->make_plural_form_function() #1 /usr/share/wordpress-triteam/wp-includes/pomo/translations.php(69): Gettext_Translations->set_header() #2 /usr/share/wordpress-triteam/wp-includes/pomo/mo.php(248): Translations->set_headers() #3 /usr/share/wordpress-triteam/wp-includes/pomo/mo.php(27): MO->import_from_reader() #4 /usr/share/wordpress-triteam/wp-includes/l10n.php(557): MO->import_from_file() #5 /usr/share/wordpress-triteam/wp-includes/l10n.php(686): load_textdomain() #6 /usr/share/wordpress-triteam/wp-content/plugins/planso-forms/index.php(29): load_plugin_textdomain() #7 /usr/share/wordpress-triteam/wp-settings.php(254): include_once('...') #8 /usr/share/wordpress-triteam/wp-config.php(62): require_once('...') #9 /usr/share/wordpress-triteam/wp-load.php(37): require_once('...') #10 /usr/share/wordpress-triteam/wp-blog-header.php(12): require_once('...') #11 /usr/share/wordpress-triteam/index.php(17): require('...') #12 {main} thrown in /usr/share/wordpress-triteam/wp-includes/pomo/translations.php on line 208