Why do I sometimes get this error message
when submitting a new translation page?
After a browser back page I can continue the translation process
and the requested page will be found.
After a few pages with new translations this error will occur again etc etc ....
Quote of browser output:
Not Acceptable
An appropriate representation of the requested resource /mysubdirectory/admin/languages could not be found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.