Error with the tagger UI...

Hi all,
We are facing an issue while trying to tag contents with tagger UI.
When content is selected in Teamsite and then on clicking File->Tag menu a blank screen appears.

The error in servletd_out.log is,

2009-09-17 17:45:47,466 [http-8080-Processor24] WARN com.interwoven.ui.base.impl.command.CommandHandler () - Execute com.interwoven.livesite.iw.servlet.SetMetaTagsCommand error.
java.lang.RuntimeException: Error while executing method: public java.util.List com.interwoven.livesite.hibernate.dao.impl.BaseHibernateDataAccessObject.findBySearchArguments(java.util.List).....
................................................................................
Caused by: java.sql.SQLException: ORA-00942: table or view does not exist

at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:573)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1891)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:830)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2391)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2672)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:589)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:527)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1787)
at org.hibernate.loader.Loader.doQuery(Loader.java:674)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.doList(Loader.java:2220)
... 64 more
2009-09-17 19:03:26,278 [http-8080-Processor20] WARN com.interwoven.ui.base.impl.command.CommandHandler () - command iw.ccpro.tag returned null

any comments?

thx in advance.