Fatal error: Uncaught Error: Call to undefined function imagecreatetruecolor() in /var/www/html/public/image-proxy.php:122 Stack trace: #0 /var/www/html/public/image-proxy.php(10): sendPlaceholderImage() #1 /var/www/html/router.php(320): require('/var/www/html/p...') #2 {main} thrown in /var/www/html/public/image-proxy.php on line 122