Warning: require_once(//wp-includes/blocks/button.php): Failed to open stream: No such file or directory in /wp-includes/blocks/require-dynamic-blocks.php on line 8

Fatal error: Uncaught Error: Failed opening required '//wp-includes/blocks/button.php' (include_path='.:/usr/local/share/pear') in /wp-includes/blocks/require-dynamic-blocks.php:8 Stack trace: #0 /wp-includes/blocks/index.php(18): require() #1 /wp-settings.php(368): require('/wp-includes/bl...') #2 /wp-config.php(101): require_once('/wp-settings.ph...') #3 /wp-load.php(50): require_once('/wp-config.php') #4 /wp-blog-header.php(13): require_once('/wp-load.php') #5 /index.php(17): require('/wp-blog-header...') #6 {main} thrown in /wp-includes/blocks/require-dynamic-blocks.php on line 8