Fatal error

After the update of the NextGen Gallery plugin the site (http://rochiidemireasa.it/) is off line whith this error mesagge:
Warning: require_once(/home/w19925/domains/rochiidemireasa.it/public_html/wp-content/plugins/nextgen-gallery/pope/lib/autoload.php) [function.require-once]: failed to open stream: No such file or directory in /home/w19925/domains/rochiidemireasa.it/public_html/wp-content/plugins/nextgen-gallery/nggallery.php on line 208

Fatal error: require_once() [function.require]: Failed opening required ‘/home/w19925/domains/rochiidemireasa.it/public_html/wp-content/plugins/nextgen-gallery/pope/lib/autoload.php’ (include_path=’.:/usr/local/php5.3/lib/php’) in /home/w19925/domains/rochiidemireasa.it/public_html/wp-content/plugins/nextgen-gallery/nggallery.php on line 208
In nggallery.php file is:

205 // Include pope framework
206 require_once(implode(
207 DIRECTORY_SEPARATOR, array(NGG_PLUGIN_DIR, ‘pope’,’lib’,’autoload.php’)
208 ));
Where is the problem?
Thanks in advace.

https://wordpress.org/plugins/nextgen-gallery/