Warning: require_once(Zend/Application.php): failed to open stream: No such file or directory in /home/c2071323/public_html/htdocs/index.php on line 21

Fatal error: require_once(): Failed opening required 'Zend/Application.php' (include_path=':.:/opt/php7-4/lib/php') in /home/c2071323/public_html/htdocs/index.php on line 21