diff --git a/layouts/partials/footer.html b/layouts/partials/footer.html
index 2d6c388..cd5ec43 100644
--- a/layouts/partials/footer.html
+++ b/layouts/partials/footer.html
@@ -5,7 +5,7 @@
             {{ if .Site.Home.AllTranslations}}
             <ul class="lang">
                 {{ range $.Site.Home.AllTranslations }}
-                <li><a href="{{ .Permalink }}">{{ .Language.LanguageName }}</a></li>
+                <li><a href="{{ replace $.Page.URL $.Page.Language.Lang .Language.Lang}}">{{ .Language.LanguageName }}</a></li>
                 {{ end }}
             </ul>
             {{ end }}
@@ -13,6 +13,8 @@
 
             {{ if .Params.sponsor }}
             <img class="sponsor" src="{{ .Params.sponsor }}"/>
+            {{else}}
+            <img class="sponsor" src="/img/sponsors/FabInfra.png"/>
             {{ end }}
         </footer>
     </body>
diff --git a/static/img/sponsors/BMBF.jpg b/static/img/sponsors/BMBF.jpg
deleted file mode 100644
index e91c985..0000000
Binary files a/static/img/sponsors/BMBF.jpg and /dev/null differ
diff --git a/static/img/sponsors/BMBF_DE.png b/static/img/sponsors/BMBF_DE.png
new file mode 100644
index 0000000..1599826
Binary files /dev/null and b/static/img/sponsors/BMBF_DE.png differ
diff --git a/static/img/sponsors/BMBF_EN.png b/static/img/sponsors/BMBF_EN.png
new file mode 100644
index 0000000..01e746b
Binary files /dev/null and b/static/img/sponsors/BMBF_EN.png differ
diff --git a/static/img/sponsors/BMBF_ENG.jpg b/static/img/sponsors/BMBF_ENG.jpg
deleted file mode 100644
index 1f53176..0000000
Binary files a/static/img/sponsors/BMBF_ENG.jpg and /dev/null differ
diff --git a/static/img/sponsors/FabInfra.png b/static/img/sponsors/FabInfra.png
new file mode 100644
index 0000000..df44db9
Binary files /dev/null and b/static/img/sponsors/FabInfra.png differ