Update: I created a pull request on the plugin’s github page for that:
https://github.com/wp-plugins/speakout/pull/1
Hello @mfue,
your idea is absolutely correct:
mv dk_speakout-out_DE.mo dk_speakout-de_DE.mo
made my installation work in German. \o/\o/\o/
1.) This should be regarded as a bug !
2.) To make an interim solution ask the server admin or ISP. Or try to use something like phpshell ( http://phpshell.sourceforge.net/ ) to get www-data permissions
Best Regards,
Andreas