"Not available in this Language" fix

When using this plugin, the message “Sorry, this entry is only available in %Lang” has the link to the wrong URL.

So it is fixed in the file:

qtranslate/qtranslate_core.php
line 810 instead of

$language_list = "<a href=\"".qtrans_convertURL('', $language)."\">".$q_config['language_name'][$language]."</a>".$language_list;

replace it with:

global $qtranslate_slug;
$language_url = $qtranslate_slug->get_current_url($language);
$language_list = "<a href=\"".$language_url."\">".$q_config['language_name'][$language]."</a>".$language_list;

Note: don’t forget that, if you update qtranslate, these changes will be lost…
https://wordpress.org/plugins/qtranslate-slug/