Fatal error: Uncaught Error: Class 'WP_Block_Metadata_Registry' not found in C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-includes\blocks.php:391 Stack trace: #0 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-includes\blocks\index.php(174): wp_register_block_metadata_collection('C:\\Inetpub\\vhos...', 'C:\\Inetpub\\vhos...') #1 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-includes\class-wp-hook.php(324): wp_register_core_block_metadata_collection('') #2 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-includes\class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #3 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-includes\plugin.php(517): WP_Hook->do_action(Array) #4 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-settings.php(700): do_action('init') #5 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-config.php(175): require_once('C:\\Inetpub\\vhos...') #6 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-load.php(50): require_once('C:\\Inetpub\\vhos...') #7 C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-blog-header.php(13): require_once in C:\Inetpub\vhosts\ardabilkorg.ir\httpdocs\wp-includes\blocks.php on line 391