Internal Server Error

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Error code: 500
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    error:
    {"code":"8f7745dd","stacktrace":"TypeError: Argument 1 passed to Materials\\Model\\MaterialModel::diffEmbeds() must be an instance of Application\\Model\\ArrayObject, string given, called in /var/app/current/module/Materials/src/Model/MaterialModel.php on line 311 and defined in /var/app/current/module/Materials/src/Model/MaterialModel.php:1598\nStack trace:\n#0 /var/app/current/module/Materials/src/Model/MaterialModel.php(311): Materials\\Model\\MaterialModel->diffEmbeds('C:29:\"Applicati...', 31)\n#1 /var/app/current/module/Materials/src/Controller/MaterialTrait.php(74): Materials\\Model\\MaterialModel->getMaterial('kykvfxe5', Object(Application\\Utils\\Parameters), Array)\n#2 /var/app/current/module/Materials/src/Controller/MaterialController.php(143): Materials\\Controller\\MaterialController->fetchMaterial('kykvfxe5', Object(Application\\Utils\\Parameters), Array)\n#3 /var/app/current/vendor/laminas/laminas-mvc/src/Controller/AbstractRestfulController.php(373): Materials\\Controller\\MaterialController->get('kykvfxe5')\n#4 /var/app/current/module/Application/src/Controller/GeoGebraController.php(93): Laminas\\Mvc\\Controller\\AbstractRestfulController->onDispatch(Object(Laminas\\Mvc\\MvcEvent))\n#5 /var/app/current/vendor/laminas/laminas-eventmanager/src/EventManager.php(319): Application\\Controller\\GeoGebraController->onDispatch(Object(Laminas\\Mvc\\MvcEvent))\n#6 /var/app/current/vendor/laminas/laminas-eventmanager/src/EventManager.php(179): Laminas\\EventManager\\EventManager->triggerListeners(Object(Laminas\\Mvc\\MvcEvent), Object(Closure))\n#7 /var/app/current/vendor/laminas/laminas-mvc/src/Controller/AbstractController.php(97): Laminas\\EventManager\\EventManager->triggerEventUntil(Object(Closure), Object(Laminas\\Mvc\\MvcEvent))\n#8 /var/app/current/vendor/laminas/laminas-mvc/src/Controller/AbstractRestfulController.php(307): Laminas\\Mvc\\Controller\\AbstractController->dispatch(Object(Laminas\\Http\\PhpEnvironment\\Request), Object(Laminas\\Http\\PhpEnvironment\\Response))\n#9 /var/app/current/vendor/laminas/laminas-mvc/src/DispatchListener.php(132): Laminas\\Mvc\\Controller\\AbstractRestfulController->dispatch(Object(Laminas\\Http\\PhpEnvironment\\Request), Object(Laminas\\Http\\PhpEnvironment\\Response))\n#10 /var/app/current/vendor/laminas/laminas-eventmanager/src/EventManager.php(319): Laminas\\Mvc\\DispatchListener->onDispatch(Object(Laminas\\Mvc\\MvcEvent))\n#11 /var/app/current/vendor/laminas/laminas-eventmanager/src/EventManager.php(179): Laminas\\EventManager\\EventManager->triggerListeners(Object(Laminas\\Mvc\\MvcEvent), Object(Closure))\n#12 /var/app/current/vendor/laminas/laminas-mvc/src/Application.php(325): Laminas\\EventManager\\EventManager->triggerEventUntil(Object(Closure), Object(Laminas\\Mvc\\MvcEvent))\n#13 /var/app/current/public/index.php(43): Laminas\\Mvc\\Application->run()\n#14 {main}"}
    message:
    no error message '/materials/kykvfxe5?{"embed":"creator,contributors,interlinking,tags,actions","scope":"extended"}'