Error: Call to undefined function Opencart\Catalog\Controller\Extension\Opencart\Captcha\imagecreatetruecolor()
File: /var/www/hakanb6435.info/extension/opencart/catalog/controller/captcha/basic.php
Line: 45

Backtrace: 0
File: /var/www/hakanb6435.info/system/engine/action.php
Line: 96
Class: Opencart\Catalog\Controller\Extension\Opencart\Captcha\Basic
Function: captcha

Backtrace: 1
File: /var/www/hakanb6435.info/system/framework.php
Line: 259
Class: Opencart\System\Engine\Action
Function: execute

Backtrace: 2
File: /var/www/hakanb6435.info/index.php
Line: 20
Function: require_once