You cannot use Zend\Crypt\Symmetric\Mcrypt without the Mcrypt extension

#0 /ipasaz/vendor/zendframework/zend-crypt/src/SymmetricPluginManager.php(59): Zend\Crypt\Symmetric\Mcrypt->__construct()
#1 /ipasaz/vendor/zendframework/zend-crypt/src/BlockCipher.php(100): Zend\Crypt\SymmetricPluginManager->get('mcrypt')
#2 /ipasaz/module/Stmx/Module.php(63): Zend\Crypt\BlockCipher::factory('mcrypt', Array)
#3 /ipasaz/vendor/zendframework/zend-eventmanager/src/EventManager.php(322): Stmx\Module->onBootstrap(Object(Zend\Mvc\MvcEvent))
#4 /ipasaz/vendor/zendframework/zend-eventmanager/src/EventManager.php(171): Zend\EventManager\EventManager->triggerListeners(Object(Zend\Mvc\MvcEvent))
#5 /ipasaz/vendor/zendframework/zend-mvc/src/Application.php(161): Zend\EventManager\EventManager->triggerEvent(Object(Zend\Mvc\MvcEvent))
#6 /ipasaz/vendor/zendframework/zend-mvc/src/Application.php(273): Zend\Mvc\Application->bootstrap(Array)
#7 /ipasaz/public/index.php(40): Zend\Mvc\Application::init(Array)
#8 {main}