后台管理怎么什么都不能删除啊

后台管理怎么什么都不能删除啊 商品 相册 团购 等等 都不能删除 提示一下错误


MySQL Query Error [1064]
错误信息: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IN ('13' )' at line 1
SQL: DELETE FROM brand_relatedinfo WHERE relatedtype = 'good' AND IN ('13' )

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PHP Backtrace

File	Line	Function
source/class/db_mysql.class.php	113	db_mysql->halt()
source/class/db.class.php	100	db_mysql->query()
source/adminfunc/tool.func.php	121	DB::query()
source/admin/batchmod.inc.php	130	delmitems()
admin.php	118	require_once()