file upload using 'FND_FNDFLUPL'

Hi all, I hope that someone can help me support told me that this function is not supported, but it is part of Oracle EBS:

We have a custom form that invokes an Oracle Function   FND_FNDFLUPL to upload files to oracle, from PL/SQL within a fomr we have the  following code:

 access_id := fnd_gfm.authorize(NULL);

  fnd_profile.get('APPS_WEB_AGENT',l_server_url);

  l_parameters := 'access_id=' || access_id || 'l_server_url=' || l_server_url;

  fnd_function.EXECUTE(function_name => 'FND_FNDFLUPL',

                       open_flag     => 'Y',

                       session_flag  => 'Y',

                       other_params  => l_parameters);

it should open a browser and display a web page to select the file to upload, actually it works fine in other servers but in one particular server it shows a web page with message: