Fatal error: Cannot declare class WP_Metadata_Lazyloader, because the name is already in use in C:\phpstudy_pro\WWW\wp-includes\class-wp-metadata-lazyloader.php on line 32

Fatal error: Uncaught Error: Class "WP_Translation_Controller" not found in C:\phpstudy_pro\WWW\wp-includes\l10n.php:800 Stack trace: #0 C:\phpstudy_pro\WWW\wp-includes\l10n.php(959): load_textdomain('default', 'C:\\phpstudy_pro...', 'zh_CN') #1 C:\phpstudy_pro\WWW\wp-includes\class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in C:\phpstudy_pro\WWW\wp-includes\l10n.php on line 800