Warning: PHP Startup: failed to open stream: No such file or directory in /index.php on line 11

Warning: PHP Startup: failed to open stream: No such file or directory in /index.php on line 11

Fatal error: PHP Startup: Failed opening required 'init_autoloader.php' (include_path='.:/:/usr/local/php74/lib/pear') in /index.php on line 11