Database migration failed

2013-01-24 07:24:22,259 INFO  [NioProcessor-4]  org.apache.sshd.server.kex.DHG14 Received SSH_MSG_KEXDH_INIT
2013-01-24 07:24:22,259 INFO  [NioProcessor-3]  org.apache.sshd.server.kex.DHG14 Received SSH_MSG_KEXDH_INIT
2013-01-24 07:24:22,260 DEBUG [threadpool:thread-8] admin 443x1342x1 1l6k8gy 86.86.65.13 "POST /admin/db/edit HTTP/1.1" c.a.s.i.backup.AbstractBackupSupport Successfully deleted unpacked files from /home/admin/stash-home/tmp/migration-admin-20130124-072356-019.zip-unpack5677593955209237819.backup
2013-01-24 07:24:22,266 ERROR [threadpool:thread-8] admin 443x1342x1 1l6k8gy 86.86.65.13 "POST /admin/db/edit HTTP/1.1" c.a.s.i.m.DefaultMigrationService Reverting database configuration after a failed migration attempt
com.atlassian.activeobjects.spi.ActiveObjectsImportExportException: There was an error during import/export with plugin Atlassian Stash SSH Plugin(com.atlassian.stash.ssh-plugin) #2.0.0 (table AO_FB71B4_PUBLIC_KEY):Error executing update for SQL statement 'CREATE TABLE AO_FB71B4_PUBLIC_KEY (
    ID INTEGER AUTO_INCREMENT,
    KEY_MD5 VARCHAR(255),
    KEY_TEXT TEXT,
    USER_ID INTEGER,
    PRIMARY KEY(ID)
) ENGINE=InnoDB'
	at com.atlassian.activeobjects.backup.ImportExportErrorServiceImpl.newImportExportSqlException(ImportExportErrorServiceImpl.java:30) ~[na:na]
	at com.atlassian.activeobjects.backup.SqlUtils.onSqlException(SqlUtils.java:53) ~[na:na]
	at com.atlassian.activeobjects.backup.SqlUtils.executeUpdate(SqlUtils.java:42) ~[na:na]
	at com.atlassian.activeobjects.backup.ActiveObjectsTableCreator.create(ActiveObjectsTableCreator.java:84) ~[na:na]
...
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'AO_FB71B4_PUBLIC_KEY' already exists