Custom Fields translatable ?

[wp4all]

Hi,

some question about the custom Fields is there a chance to translate them ?

I added for the personal salutation a custom field, but as usual it is only one Language possible.

therefor I created a custom Fiel to the Register-Page like 

but as you can see it is English and instead of Mister we have Herr.

Here is the hook I use:

function custom_welcome_back($vars) {
  global $smarty;
  $get_templatefile = $smarty->getVariable('templatefile')->value;
  if($get_templatefile == 'clientareahome'){
    $get_orig_titel = $smarty->getVariable('LANG')->value;
    $get_details = $smarty->getVariable('clientsdetails')->value;
    return array(
      'displayTitle' => $get_orig_titel['welcomeback'].', '. $get_details['customfields2'].' '.$get_details['lastname'],
      
    );
  }
}
  add_hook("ClientAreaPage",100,"custom_welcome_back");

Any Idea how to get this translated ?

Thanks Christian