Warning: require_once(/app/public/wp-load.php): Failed to open stream: No such file or directory in /app/public/wp-blog-header.php on line 13

Fatal error: Uncaught Error: Failed opening required '/app/public/wp-load.php' (include_path='.:/usr/local/lib/php') in /app/public/wp-blog-header.php:13 Stack trace: #0 /app/public/index.php(17): require() #1 {main} thrown in /app/public/wp-blog-header.php on line 13