BrightMail Error

Dear All
Am using Brightmail Control Center version: 6.0.2.100 on Linux Enterbrise ES 3.0 it work fine for long time ,before one month when i log in to bright mail by the web site to the control center i cannot check the Quarantin spam and even when i go to Summary i see red cross at all system status . but the Brightmail is stell work i can see the carve for the spam , i look to the brightmail log file i foun a error but i don't know what shall i do. and this is the error.

Jun 13 2006 02:05:54 [Thread-22] ERROR - Cannot create a spam message in the database.
com.brightmail.dl.DataAccessException: null; nested exception is:
        java.sql.SQLException: General error,  message from server: "Can't open file: 'spam_message.MYI'. (errno: 145)"
        at com.brightmail.dl.impl.DAOHelper.executeUpdate(DAOHelper.java:318)
        at com.brightmail.dl.impl.QuarantineDAOImpl.createSpamMessage(QuarantineDAOImpl.java:118)
        at com.brightmail.bl.bo.impl.QuarantineManager.create(QuarantineManager.java:206)
        at com.brightmail.service.smtp.impl.SmtpConsumer.run(SmtpConsumer.java:222)
Caused by: java.sql.SQLException: General error,  message from server: "Can't open file: 'spam_message.MYI'. (errno: 145)"
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1905)
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1109)
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1203)
        at com.mysql.jdbc.Connection.execSQL(Connection.java:2090)
        at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1680)
        at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1527)
        at org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:207)
        at com.brightmail.dl.impl.DAOHelper.executeUpdate(DAOHelper.java:313)
        ... 3 more


Pls. Can any one help me.

Thanks