请帮看一下，这是什么错误？

SupeSite info: MySQL Query Error

User: Guest
Time: 2008-6-1 7:22pm
Script: /index.php

SQL: REPLACE INTO [Table]spacecache (uid, cacheid, value, updatetime) VALUES ('1', '1', 'a:2:{i:0;a:8:{s:6:\"itemid\";s:1:\"2\";s:4:\"type\";s:5:\"image\";s:6:\"author\";s:5:\"Guest\";s:8:\"dateline\";s:10:\"1212109943\";s:5:\"rates\";s:1:\"5\";s:7:\"subject\";s:7:\"评分: 5\";s:3:\"url\";s:58:\"http://127.0.0.1/index.php?uid-1-action-viewspace-itemid-2\";s:7:\"typeurl\";s:79:\"<a href=\"http://127.0.0.1/index.php?uid-1-action-spacelist-type-image\">图片</a>\";}i:1;a:8:{s:6:\"itemid\";s:1:\"2\";s:4:\"type\";s:5:\"image\";s:6:\"author\";s:5:\"Guest\";s:8:\"dateline\";s:10:\"1212049719\";s:5:\"rates\";s:1:\"5\";s:7:\"subject\";s:7:\"评分: 5\";s:3:\"url\";s:58:\"http://127.0.0.1/index.php?uid-1-action-viewspace-itemid-2\";s:7:\"typeurl\";s:79:\"<a href=\"http://127.0.0.1/index.php?uid-1-action-spacelist-type-image\">图片</a>\";}}', '1212341652')
Error: Table 'sitebbs.[Table]spacecache' doesn't exist
数据表缺失,请恢复备份数据

SupeSite info: MySQL Query Error

User: admin
Time: 2008-6-1 7:24pm
Script: /admincp.php

SQL: TRUNCATE TABLE [Table]cache
Error: Table 'sitebbs.[Table]cache' doesn't exist
数据表缺失,请恢复备份数据

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