$err->add($i18n->get('error.client'));
     if ($custom_fields) {
       if (!ttValidString($cl_cf_1, !$custom_fields->fields[0]['required'])) $err->add($i18n->get('error.field'), $custom_fields->fields[0]['label']);
       $err->add($i18n->get('error.client'));
     if ($custom_fields) {
       if (!ttValidString($cl_cf_1, !$custom_fields->fields[0]['required'])) $err->add($i18n->get('error.field'), $custom_fields->fields[0]['label']);