I have purchased the Pro version of GTranslate. After several problems in the beginning it is now running correctly on our site www.biocity-campus.de. However, when we try to add manual translations, adding ?language_edit=1, we always get a 404 error "component not found". Logging into the backend of Joomla (so that the session has admin privileges) does not solve the problem.
Can you provide a step by step description how to add manual translations?