Fatal error: Cannot redeclare wp_enqueue_global_styles_custom_css() (previously declared in /wp-includes/deprecated.php:6376) in /wp-includes/script-loader.php on line 2524

Fatal error: Uncaught Error: Call to a member function set() on null in /wp-includes/l10n.php:856 Stack trace: #0 /wp-includes/l10n.php(959): load_textdomain() #1 /wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /wp-includes/l10n.php on line 856