Fatal error: Uncaught TypeError: Argument 1 passed to Endroid\QrCode\QrCode::__construct() must be of the type string, null given, called in /var/www/html/index.php on line 177 and defined in /var/www/html/vendor/endroid/qr-code/src/QrCode.php:95 Stack trace: #0 /var/www/html/index.php(177): Endroid\QrCode\QrCode->__construct(NULL) #1 {main} thrown in /var/www/html/vendor/endroid/qr-code/src/QrCode.php on line 95