Error when accessing items

I'm working on personalizing a site using the Deco theme (the Exhibit Space version) and am encountering an Omeka_Record_Exception error when trying to access exhibit items.

#0 /home/pistoia/orsigna.info/omeka/application/models/ActsAsElementText.php(238): ActsAsElementText->getElementByNameAndSetName('Reference URL', 'Item Type Metad...')
#1 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/Record.php(250): ActsAsElementText->getElementTextsByElementNameAndSetName('Reference URL', 'Item Type Metad...')
#2 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/Record.php(209): Omeka_Record->delegateToMixins(Array, Array)
#3 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/View/Helper/RecordMetadata.php(200): Omeka_Record->__call('getElementTexts...', Array)
#4 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/View/Helper/RecordMetadata.php(200): Item->getElementTextsByElementNameAndSetName('getElementTexts...', Array)
#5 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/View/Helper/RecordMetadata.php(173): Omeka_View_Helper_RecordMetadata->_getElementText('Reference URL', 'Item Type Metad...')
#6 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/View/Helper/RecordMetadata.php(82): Omeka_View_Helper_RecordMetadata->_getText(Object(Item), 'Item Type Metad...', 'Reference URL')
#7 /home/pistoia/orsigna.info/omeka/application/helpers/ItemMetadata.php(28): Omeka_View_Helper_RecordMetadata->_get(Object(Item), 'Item Type Metad...', 'Reference URL')
#8 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/View/Abstract.php(350): Omeka_View_Helper_ItemMetadata->itemMetadata(Object(Item), 'Item Type Metad...', 'Reference URL', Array)
#9 /home/pistoia/orsigna.info/omeka/application/helpers/ItemFunctions.php(198): Zend_View_Abstract->__call(Object(Item), 'Item Type Metad...', 'Reference URL', Array)
#10 /home/pistoia/orsigna.info/omeka/application/helpers/ItemFunctions.php(198): Omeka_View->itemMetadata(Array, Array)
#11 /home/pistoia/orsigna.info/omeka/themes/deco_exhibitsOnly/items/show.php(8): item()
#12 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/View.php(113): include('/home/pistoia/o...')
#13 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run('itemMetadata', Array)
#14 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(900): Zend_View_Abstract->render(Object(Item), 'Item Type Metad...', 'Reference URL', Array)
#15 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(921): Zend_Controller_Action_Helper_ViewRenderer->renderScript('Item Type Metad...', 'Reference URL')
#16 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(960): Zend_Controller_Action_Helper_ViewRenderer->render('/home/pistoia/o...')
#17 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch('items/show.php')
#18 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch('items/show.php', NULL)
#19 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Controller/Dispatcher/Standard.php(295): Zend_Controller_Action->dispatch()
#20 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch()
#21 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#22 /home/pistoia/orsigna.info/omeka/application/libraries/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run('showAction')
#23 /home/pistoia/orsigna.info/omeka/application/libraries/Omeka/Core.php(165): Zend_Application->run(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#24 /home/pistoia/orsigna.info/omeka/index.php(30): Omeka_Core->run()
#25 {main}

Sorry about the delay in responding; our forums flagged this message as spam.

It looks like you left out the most important part, the exceptions message: "There is no element named "Reference URL"!"

I'd guess the problem is here:

omeka/themes/deco_exhibitsOnly/items/show.php(8): item()

You have a call to item() on line 8 of that theme's items/show page, and it (presumably) references an Item Type metadata element you don't have in your installation.

Found it! Thanks very much.