Warning: Undefined array key "data" in /home/runcloud/webapps/qr-code/public/index.php on line 8

Fatal error: Uncaught TypeError: Endroid\QrCode\Builder\Builder::data(): Argument #1 ($data) must be of type string, null given, called in /home/runcloud/webapps/qr-code/public/index.php on line 36 and defined in /home/runcloud/webapps/qr-code/vendor/endroid/qr-code/src/Builder/Builder.php:92 Stack trace: #0 /home/runcloud/webapps/qr-code/public/index.php(36): Endroid\QrCode\Builder\Builder->data() #1 {main} thrown in /home/runcloud/webapps/qr-code/vendor/endroid/qr-code/src/Builder/Builder.php on line 92