Warning: require_once(../config.php): Failed to open stream: No such file or directory in /var/www/Crud-Exercises/01-Crud(Composer)/controller/Validation.php on line 2

Fatal error: Uncaught Error: Failed opening required '../config.php' (include_path='.:/usr/share/php') in /var/www/Crud-Exercises/01-Crud(Composer)/controller/Validation.php:2 Stack trace: #0 /var/www/Crud-Exercises/01-Crud(Composer)/controller/App.php(2): require_once() #1 /var/www/Crud-Exercises/01-Crud(Composer)/index.php(2): require_once('...') #2 {main} thrown in /var/www/Crud-Exercises/01-Crud(Composer)/controller/Validation.php on line 2