Fatal error: Uncaught Error: Call to undefined function imagecreatetruecolor() in /var/www/html/generate-icons.php:51 Stack trace: #0 /var/www/html/generate-icons.php(114): generateIcon(16, 'AP', 17, 24, 39) #1 {main} thrown in /var/www/html/generate-icons.php on line 51