In wp_list_comments comment dates won't work?

Question

I'm trying to create my first comments list and comment form in my wordpress site but the dates are displayed as %e %B %Y at %H:%M instead of the date.

It seems like the date format isn't recognized.

I've simply written this code:

<?php
    $args = array (
        'avatar_size' => 48
    );
    wp_list_comments($args);
?>
<?php comment_form(); ?>

How can I fix it?

Answer 1

Taken from comments:

The plugin qTranslate cannot parse the time format string if no time options are set. Disabling the plugin or setting the time options fixes the problem.