Fatal error: Uncaught Error: Call to undefined function ImageCreate() in /var/www/html/phpqrcode/qrimage.php:74 Stack trace: #0 /var/www/html/phpqrcode/qrimage.php(32): QRimage::image() #1 /var/www/html/phpqrcode/qrencode.php(494): QRimage::png() #2 /var/www/html/phpqrcode/qrencode.php(286): QRencode->encodePNG() #3 /var/www/html/flora/includes/qrcode_monitor.php(40): QRcode::png() #4 {main} thrown in /var/www/html/phpqrcode/qrimage.php on line 74