Fatal error: Uncaught Error: Call to undefined function imagecreatetruecolor() in /var/www/html/assets/captcha/phptextClass.php:43 Stack trace: #0 /var/www/html/assets/captcha/captcha.php(8): phptextClass->phpcaptcha(Array, '#fff', 120, 40, 10, 25) #1 {main} thrown in /var/www/html/assets/captcha/phptextClass.php on line 43