I've just tried to install Omeka but I'm getting this error message when I go to the url. Any ideas why?
Warning: require_once(Zend/Loader.php) [function.require-once]: failed to open stream: No such file or directory in /home/londonex/public_html/application/libraries/Zend/Controller/Front.php on line 23
Fatal error: require_once() [function.require]: Failed opening required 'Zend/Loader.php' (include_path='/home/londonex/public_html/application/libraries:/home/londonex/public_html/application/models') in /home/londonex/public_html/application/libraries/Zend/Controller/Front.php on line 23