删除会员数据后提示mySQL错误

MySQL Error
Message: MySQL Query Error
SQL: DELETE FROM uchome_mailcron, uchome_mailqueue USING xs_mailcron, uchome_mailqueue WHERE uchome_mailcron.touid='14541' AND uchome_mailcron.cid=uchome_mailqueue.cid
Error: Unknown table 'uchome_mailcron' in MULTI DELETE
Errno.: 1109
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