urls must be relative

config.yml

@@ -33,19 +33,19 @@ languages:
     menu:
       main:
         - name: Über
-          url: /posts/helloworld
+          url: posts/helloworld
           weight: 1
         - name: Programm
-          url: /posts/program
+          url: posts/program
           weight: 10
         - name: Anmeldung
-          url: /posts/registration
+          url: posts/registration
           weight: 20
         - name: FAQ
-          url: /posts/faq
+          url: posts/faq
           weight: 1000
         - name: Kontakt
-          url: /posts/contact
+          url: posts/contact
           weight: 1000
   en:
     languageName: en
@@ -67,19 +67,19 @@ languages:
     menu:
       main:
         - name: About
-          url: /posts/helloworld
+          url: posts/helloworld
           weight: 1
         - name: Program
-          url: /posts/program
+          url: posts/program
           weight: 10
         - name: Register
-          url: /posts/registration
+          url: posts/registration
           weight: 20
         - name: FAQ
-          url: /posts/faq
+          url: posts/faq
           weight: 900
         - name: Contact
-          url: /posts/contact
+          url: posts/contact
           weight: 1000
 
 params: