Localized date solution

The plugin does not show a localized version of the chosen date format.
To fix it go to wp-attachments.php line 179 and change:

$wpattachments_string = str_replace("%DATE%", $wpatt_date->format(get_option('wpatt_option_date_localization')), $wpattachments_string);

to

$wpattachments_string = str_replace("%DATE%", date_i18n(get_option('wpatt_option_date_localization'),$wpatt_date->getTimestamp()), $wpattachments_string);