Fatal error: Cannot redeclare wp_add_editor_classic_theme_styles() (previously declared in C:\inetpub\wwwroot\wp-includes\deprecated.php:6438) in C:\inetpub\wwwroot\wp-includes\script-loader.php on line 3326

Fatal error: Uncaught Error: Call to a member function set() on null in C:\inetpub\wwwroot\wp-includes\l10n.php:856 Stack trace: #0 C:\inetpub\wwwroot\wp-includes\l10n.php(959): load_textdomain() #1 C:\inetpub\wwwroot\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:\inetpub\wwwroot\wp-includes\l10n.php on line 856