Warning: require_once(/var/www/html/moodle/lib/setup.php): Failed to open stream: No such file or directory in /var/www/html/moodle/config.php on line 45

Fatal error: Uncaught Error: Failed opening required '/var/www/html/moodle/lib/setup.php' (include_path='.:/usr/share/php') in /var/www/html/moodle/config.php:45 Stack trace: #0 /var/www/html/moodle/public/config.php(2): require() #1 /var/www/html/moodle/public/course/index.php(26): require_once('...') #2 {main} thrown in /var/www/html/moodle/config.php on line 45