jos-Error: php must support GD Library

JSite -> dispatch() @ /var/www/vhosts/altynsarinroo.edu.kz/uatk.edu.kz/index.php:43
JError :: raiseError() @ /var/www/vhosts/altynsarinroo.edu.kz/uatk.edu.kz/includes/application.php:205
JError :: raise() @ /var/www/vhosts/altynsarinroo.edu.kz/uatk.edu.kz/libraries/joomla/error/error.php:251