Ok, i deleted spanish.php, i made a translation in the backend , and spanish.php was recreated. But the new spanish.php has all translations strings empty:
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBMAIN', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBHOUSES', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBEDIT', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBRENT', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBBUY', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBHISTORY', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBHOUSES_TO', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBEDIT_TO', 'value_const'=>''
;
$constLang[] = array('const'=>'_REALESTATE_MANAGER_LABEL_CBRENT_TO', 'value_const'=>''
;
and so on.., so data wasn't copied from database to spasnih.php