Fatal error: Cannot redeclare wp_add_editor_classic_theme_styles() (previously declared in /pub/avantmodels_pl_nowy/wp-includes/deprecated.php:6438) in /pub/avantmodels_pl_nowy/wp-includes/script-loader.php on line 3326

Fatal error: Uncaught Error: Call to a member function set() on null in /pub/avantmodels_pl_nowy/wp-includes/l10n.php:857 Stack trace: #0 /pub/avantmodels_pl_nowy/wp-includes/l10n.php(960): load_textdomain('default', '/pub/avantmodel...', 'pl_PL') #1 /pub/avantmodels_pl_nowy/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /pub/avantmodels_pl_nowy/wp-includes/l10n.php on line 857