Slideshow stalls after a few days

Hello,

My slideshows stall for no reason after a couple of days or weeks. I have to resave the View every time, to make it work again. The error message is as follows :

Drupal.settings.viewsSlideshowCycle is undefined
[Stopper sur une erreur] var settings = Drupal.settings.viewsSlideshowCycle[fullId];

The source of the problem seems to be this file :

http://voices-voix.ca/sites/voices-voix.ca/modules/views_slideshow/contr...

The javascript being called is :

<!--//--><![CDATA[//><!--
jQuery.extend(Drupal.settings, {"basePath":"\/","pathPrefix":"en\/","ajaxPageState":{"theme":"blogbuzz","theme_token":"brIE-SQaYrldnSN0FSB_7bJTWJm9ckPKCW7PjKUjhAg","js":{"misc\/jquery.js":1,"misc\/jquery.once.js":1,"misc\/drupal.js":1,"sites\/voices-voix.ca\/modules\/nice_menus\/superfish\/js\/superfish.js":1,"sites\/voices-voix.ca\/modules\/nice_menus\/superfish\/js\/jquery.bgiframe.min.js":1,"sites\/voices-voix.ca\/modules\/nice_menus\/superfish\/js\/jquery.hoverIntent.minified.js":1,"sites\/voices-voix.ca\/modules\/nice_menus\/nice_menus.js":1,"sites\/voices-voix.ca\/modules\/views_slideshow\/js\/views_slideshow.js":1,"sites\/voices-voix.ca\/libraries\/jquery.cycle\/jquery.cycle.all.min.js":1,"sites\/voices-voix.ca\/modules\/views_slideshow\/contrib\/views_slideshow_cycle\/js\/views_slideshow_cycle.js":1,"sites\/voices-voix.ca\/modules\/field_group\/field_group.js":1,"sites\/all\/modules\/contrib\/views\/js\/jquery.ui.dialog.patch.js":1},"css":{"modules\/system\/system.base.css":1,"modules\/system\/system.menus.css":1,"modules\/system\/system.messages.css":1,"modules\/system\/system.theme.css":1,"modules\/comment\/comment.css":1,"modules\/field\/theme\/field.css":1,"modules\/node\/node.css":1,"modules\/search\/search.css":1,"modules\/user\/user.css":1,"sites\/all\/modules\/contrib\/views\/css\/views.css":1,"sites\/all\/modules\/contrib\/ctools\/css\/ctools.css":1,"sites\/voices-voix.ca\/modules\/date\/date_popup\/themes\/datepicker.1.7.css":1,"sites\/voices-voix.ca\/modules\/nice_menus\/nice_menus.css":1,"sites\/voices-voix.ca\/modules\/nice_menus\/nice_menus_default.css":1,"sites\/voices-voix.ca\/modules\/views_slideshow\/contrib\/views_slideshow_cycle\/views_slideshow_cycle.css":1,"sites\/voices-voix.ca\/modules\/field_group\/field_group.css":1,"modules\/locale\/locale.css":1,"109":1,"100":1,"0":1,"115":1,"1":1,"117":1,"sites\/voices-voix.ca\/modules\/date\/date_api\/date.css":1,"sites\/voices-voix.ca\/themes\/blogbuzz\/css\/blogbuzz.css":1,"sites\/voices-voix.ca\/themes\/blogbuzz\/css\/custom.css":1,"sites\/voices-voix.ca\/themes\/blogbuzz\/css\/stone.css":1,"sites\/voices-voix.ca\/themes\/blogbuzz\/css\/ie7.css":1,"sites\/voices-voix.ca\/themes\/blogbuzz\/css\/ie8.css":1}},"nice_menus_options":{"delay":"800","speed":"slow"}});
//--><!]]>
</script> 

Take note that the slideshow appears on the home page (English language by default) but the Views calls some French content if we add the /fr suffix (French home page).

Should I use the dev module to solve this problem ?