transcription error message

I have just started testing Omeka for transcribing documents. I have installed the Scribe theme from the University of Iowa and everything thing works fine. However, when I switch to a different theme I get an error message (see below) after trying to save the transcription I just entered. I don't have any inkling as to what it is referring to.

Omeka_Record_Exception

There is no element named "Audience"!

#0 [internal function]: ActsAsElementText->getElementByNameAndSetName('Audience', 'Dublin Core')
#1 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Omeka/Record.php(250): call_user_func_array(Array, Array)
#2 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Omeka/Record.php(209): Omeka_Record->delegateToMixins('getElementByNam...', Array)
#3 /home3/histor10/public_html/19mile.com/omeka/plugins/Scripto/models/ScriptoAdapterOmeka.php(298): Omeka_Record->__call('getElementByNam...', Array)
#4 /home3/histor10/public_html/19mile.com/omeka/plugins/Scripto/models/ScriptoAdapterOmeka.php(298): Item->getElementByNameAndSetName('Audience', 'Dublin Core')
#5 /home3/histor10/public_html/19mile.com/omeka/plugins/Scripto/libraries/Scripto/Document.php(813): ScriptoAdapterOmeka->importItemSortWeight('4', '100000')
#6 /home3/histor10/public_html/19mile.com/omeka/plugins/Scripto/controllers/IndexController.php(380): Scripto_Document->setItemSortWeight()
#7 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Zend/Controller/Action.php(516): Scripto_IndexController->pageActionAction()
#8 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Zend/Controller/Dispatcher/Standard.php(295): Zend_Controller_Action->dispatch('pageActionActio...')
#9 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#10 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#11 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#12 /home3/histor10/public_html/19mile.com/omeka/application/libraries/Omeka/Core.php(165): Zend_Application->run()
#13 /home3/histor10/public_html/19mile.com/omeka/index.php(28): Omeka_Core->run()
#14 {main}

"Audience" is a field added with the Dublin Core Extended plugin, which the Scribe theme appears to require. Did you by any chance deactivate or uninstall that plugin? That seems like the likely culprit, since that element should exist regardless of the active theme, if it has been added by that plugin.