Upgrade problem - not a valid URL *only* on showing items

Yikes… thanks, just did that… got a really nasty Zend error. :x It begins as such:

Zend_View_Exception 
script 'common/partial.php' not found in path ([domainpath]/httpdocs/omeka/themes/seasons/:[domainpath]/httpdocs/omeka/application/views/scripts/:

And that goes on for a while…