Быг с почтой

[BOT xaaz]

На сайте сервера при нажатии почта выдает ошибку:
Exception::__set_state(array(
'message' => 'Column \'receiver\' in where clause is ambiguous',
'string' => '',
'code' => 1052,
'file' => 'D:\\www\\wowacadem.org\\htdocs\\lib\\mysql.class. php',
'line' => 184,
'trace' =>
array (
0 =>
array (
'file' => 'D:\\www\\wowacadem.org\\htdocs\\pages\\account.ph p',
'line' => 284,
'function' => 'Query',
'class' => 'MySQL',
'type' => '->',
'args' =>
array (
0 => 'SELECT
`a`.`id`, `c`.`name` AS `sender_name`, `a`.`subject`,
`i`.`data` AS `item_data`, `d`.`name` AS `item_name`,
IF(`e`.`icon` IS NULL, "INV_Misc_Note_01", `e`.`icon`) AS `item_icon`,
`a`.`expire_time` - UNIX_TIMESTAMP() AS `time`, `a`.`money`,
`a`.`cod`, `a`.`checked`, `b`.`text`
FROM `characters`.`mail` AS `a`
LEFT JOIN `characters`.`mail_items` AS `mi` ON (`mi`.`mail_id` = `a`.`id`)
LEFT JOIN `characters`.`item_text` AS `b` ON (`b`.`id` = `a`.`itemTextId`)
LEFT JOIN `characters`.`characters` AS `c` ON (`c`.`guid` = `a`.`sender`)
LEFT JOIN `mangos`.`item_template` AS `d` ON (`d`.`entry` = `mi`.`item_template`)
LEFT JOIN `characters`.`item_instance` AS `i` ON (`i`.`guid` = `mi`.`item_guid`)
LEFT JOIN `mangos`.`dbc_itemdisplayinfo` AS `e` ON (`e`.`id` = `d`.`displayid`)
WHERE `receiver` = 43467 AND `a`.`deliver_time` <= 1208876355
GROUP BY `a`.`id`
ORDER BY `a`.`id` DESC',
),
),
1 =>
array (
'file' => 'D:\\www\\wowacadem.org\\htdocs\\index.php',
'line' => 51,
'function' => 'Execute',
'class' => 'Engine',
'type' => '->',
'args' =>
array (
),
),
),
))