Detail: Graduation Rates, 1894 to 1924

Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, CartaItem given in /var/www/html/webenv/omeka/plugins/Carta/CartaPlugin.php:122 Stack trace: #0 /var/www/html/webenv/omeka/application/libraries/Omeka/Plugin/Broker.php(154): CartaPlugin->hookPublicItemsShow() #1 /var/www/html/webenv/omeka/application/libraries/globals.php(188): Omeka_Plugin_Broker->callHook() #2 /var/www/html/webenv/omeka/themes/default/items/show.php(48): fire_plugin_hook() #3 /var/www/html/webenv/omeka/application/libraries/Omeka/View.php(114): include('...') #4 /var/www/html/webenv/omeka/application/libraries/Zend/View/Abstract.php(889): Omeka_View->_run() #5 /var/www/html/webenv/omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(912): Zend_View_Abstract->render() #6 /var/www/html/webenv/omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(933): Zend_Controller_Action_Helper_ViewRenderer->renderScript() #7 /var/www/html/webenv/omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(972): Zend_Controller_Action_Helper_ViewRenderer->render() #8 /var/www/html/webenv/omeka/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch() #9 /var/www/html/webenv/omeka/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch() #10 /var/www/html/webenv/omeka/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch() #11 /var/www/html/webenv/omeka/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch() #12 /var/www/html/webenv/omeka/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(106): Zend_Controller_Front->dispatch() #13 /var/www/html/webenv/omeka/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run() #14 /var/www/html/webenv/omeka/application/libraries/Omeka/Application.php(73): Zend_Application->run() #15 /var/www/html/webenv/omeka/index.php(23): Omeka_Application->run() #16 {main} thrown in /var/www/html/webenv/omeka/plugins/Carta/CartaPlugin.php on line 122