Thread:Support/Unable to create Translations :Web interface/6/lb

I'm currently unable to create Translations :Web_interface/6/lb despite the fact that I've translator rights and that ?m logged in I get the error message: Permission error

You do not have permission to edit this page, for the following reason:

This namespace is reserved for content page translations. The page you are trying to edit does not seem to correspond any page marked for translation.

You can view and copy the source of this page:

I guess there is omewhere a configurtion error as I don't see which mistake there would be on my side.