Fatal error: Uncaught Error: Class 'WP_Block_Type' not found in D:\home\site\wwwroot\wp-content\plugins\gutenberg\lib\class-wp-block-type-registry.php:86 Stack trace: #0 D:\home\site\wwwroot\wp-content\plugins\gutenberg\lib\blocks.php(31): WP_Block_Type_Registry->register('core/block', Array) #1 D:\home\site\wwwroot\wp-content\plugins\gutenberg\packages\block-library\src\block\index.php(31): register_block_type('core/block', Array) #2 D:\home\site\wwwroot\wp-content\plugins\gutenberg\lib\load.php(60): require('D:\\home\\site\\ww...') #3 D:\home\site\wwwroot\wp-content\plugins\gutenberg\gutenberg.php(166): require_once('D:\\home\\site\\ww...') #4 D:\home\site\wwwroot\wp-content\plugins\gutenberg\gutenberg.php(17): gutenberg_pre_init() #5 D:\home\site\wwwroot\wp-settings.php(305): include_once('D:\\home\\site\\ww...') #6 D:\home\site\wwwroot\wp-config.php(95): require_once('D:\\home\\site\\ww...') #7 D:\home\site\wwwroot\wp-load.php(37): require_once('D:\\home\\site\\ww...') #8 D:\home\site\wwwroot\wp-blog-header.php(13): r in D:\home\site\wwwroot\wp-content\plugins\gutenberg\lib\class-wp-block-type-registry.php on line 86