Warning: require(vendor/autoload.php): Failed to open stream: No such file or directory in /htdocs/ca/payer-carte.php on line 20

Warning: require(vendor/autoload.php): Failed to open stream: No such file or directory in /htdocs/ca/payer-carte.php on line 20

Fatal error: Uncaught Error: Failed opening required 'vendor/autoload.php' (include_path='.:/usr/share/php') in /htdocs/ca/payer-carte.php:20 Stack trace: #0 {main} thrown in /htdocs/ca/payer-carte.php on line 20