Different tags cloud by language

I manage a multilingual site.
I want to have one cloud in English and the other in French.
The links works well : they direct to the correct language post, but the names remains in the default language.
How can I do to translate the names.
I’ve tried to add in utcw-term.php file;, line 109
$this->name = __($input->name,’my-theme’);
without success

Is someone has an idea ?

Regards,
Fabrice

http://ww.wp.xz.cn/extend/plugins/ultimate-tag-cloud-widget/