add a post

I installed a new easybook and left all the default settings.

php 8.1 joomla 4.3.4

If I want to add a post (testmar.cz.uvds510.active24.cz/index.php...ed&gbid=1&Itemid=887) it gives me an error:

Display not found [name, type, prefix]: easybookreloaded, html, site
Call stack
# Function Location
1 () JROOT/libraries/src/MVC/Controller/BaseController.php:822
2 Joomla\CMS\MVC\Controller\BaseController->getView() JROOT/libraries/src/MVC/Controller/BaseController.php:608
3 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:678
4 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/libraries/src/Dispatcher/ComponentDispatcher.php:143
5 Joomla\CMS\Dispatcher\ComponentDispatcher->dispatch() JROOT/libraries/src/Component/ComponentHelper.php:361
6 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/SiteApplication.php:208
7 Joomla\CMS\Application\SiteApplication->dispatch() JROOT/libraries/src/Application/SiteApplication.php:249
8 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:293
9 Joomla\CMS\Application\CMSApplication->execute() JROOT/includes/app.php:61
10 require_once() JROOT/index.php:32

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