Dear support team, I have a problem with DB Error #1054

whenever agent creating ticket for user, and find an existing user, it gives me a DB Error #1054

[SELECT A1.id, A1.name, A6.address FROM ost_user A1 LEFT JOIN ost_user_email A2 ON (A1.id = A2.user_id) LEFT JOIN ost_organization A3 ON (A1.org_id = A3.id) LEFT JOIN ost_user_account A4 ON (A1.id = A4.user_id) LEFT JOIN ost_user__cdata A5 ON (A1.id = A5.user_id) LEFT JOIN ost_user_email A6 ON (A1.default_email_id = A6.id) WHERE (A2.address LIKE '%helen%' OR A1.name LIKE '%helen%' OR A3.name LIKE '%helen%' OR A4.username LIKE '%helen%' OR A5.phone LIKE '%helen%') LIMIT 25]

Unknown column 'A5.phone' in 'where clause' 
 
---- Backtrace ---- 
#0 (root)/include/mysqli.php(201): osTicket->logDBError('DB Error #1054', '[SELECT A1.id...') 
#1 (root)/include/class.orm.php(3466): db_query('SELECT A1.id,...', true, true) 
#2 (root)/include/class.orm.php(3522): MySqlExecutor->execute() 
#3 (root)/include/class.orm.php(2070): MySqlExecutor->getRow() 
#4 (root)/include/class.orm.php(2043): FlatArrayIterator->{closure}() 
#5 (root)/include/class.orm.php(2022): CallbackSimpleIterator->next() 
#6 (root)/include/class.orm.php(2031): CallbackSimpleIterator->rewind() 
#7 (root)/include/class.orm.php(1703): CallbackSimpleIterator->valid() 
#8 (root)/include/class.orm.php(1713): CachedResultSet->fillTo(9223372036854775807) 
#9 (root)/include/class.orm.php(1729): CachedResultSet->asArray() 
#10 (root)/include/ajax.users.php(98): CachedResultSet->getIterator() 
#11 (root)/include/class.dispatcher.php(145): UsersAjaxAPI->search('local') 
#12 (root)/include/class.dispatcher.php(38): UrlMatcher->dispatch('/local', Array) 
#13 (root)/include/class.dispatcher.php(120): Dispatcher->resolve('/local', Array) 
#14 (root)/include/class.dispatcher.php(38): UrlMatcher->dispatch('/users/local', NULL) 
#15 (root)/scp/ajax.php(316): Dispatcher->resolve('/users/local') 
#16 {main}

my version is 1.15.x

please help, thank you