General plugins

hi

i have updated my moodle to 1.9.12+ but when goto to the notification , I get faced below error :

(mysql): SHOW TABLES  

(mysql): CREATE INDEX mdl_emaifold_folmai_ix ON mdl_email_foldermail (folderid, mailid)  

1146: Table 'simorgh_lms.mdl_email_foldermail' doesn't exist

               ADOConnection._Execute(CREATE INDEX mdl_emaifold_folmai_ix ON mdl_email_foldermail (folderid, mailid), false) % line 891, file: adodb.inc.php
            ADOConnection.Execute(CREATE INDEX mdl_emaifold_folmai_ix ON mdl_email_foldermail (folderid, mailid)) % line 89, file: dmllib.php
         execute_sql(CREATE INDEX mdl_emaifold_folmai_ix ON mdl_email_foldermail (folderid, mailid), true) % line 2302, file: dmllib.php
      execute_sql_arr(Array[1], true, true) % line 1458, file: ddllib.php
   add_index(Object:XMLDBTable, Object:XMLDBIndex) % line 165, file: upgrade.php