AppManager Service will not start after upgrade

We have just run the ugrade from build 8010 to 8200 and when it came to restarting the service an error pops up (too quick to read) and AppManager goes through the motions of looking like it is starting. Nothing happens after the splash screen disappears and no icon in the system tray is shown to show it is running and when I check the services appmanager is not running.

I've checked the std err log and it gives me the following;

3 Apr 2008 10:20:09:104 ~~~~~~~~~~~~~~~ Logging started ~~~~~~~~~~~~~~~~
-------General Information------
Product = Applications Manager 8 (Build 8200)
Service Pack Version =NONE
os name=Windows 2003
os version=5.2
os architecture=x86
java version=1.5.0_06
java vendor=Sun Microsystems Inc.
java specification=Java Platform API Specification
java specification version=1.5
java vm name=Java HotSpot(TM) Client VM
java vm information =mixed mode
java compiler=null
********************************************************

3 Apr 2008 10:20:09:104 Messages on ********03 April 2008********
3 Apr 2008 10:20:09:244 -------RDBMS related information------
database product name = MySQL
database product version=4.0.13-nt
database driver name=MySQL-AB JDBC Driver
database driver version=mysql-connector-java-com-3.0.15-ga ( $Date: 2004/08/09 22:15:11 $, $Revision: 1.27.2.43 $ )
database user name=root@localhost
database URL=jdbc:mysql://localhost:13327/AMDB?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8
******************************************************
3 Apr 2008 10:20:15:280 java.sql.SQLException: General error message from server: "Can't open file: 'event.MYI'. (errno: 144)"
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1990)
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1160)
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1271)
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.MysqlIO.sqlQuery(MysqlIO.java:1217)
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.Connection.execSQL(Connection.java:2237)
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.Connection.execSQL(Connection.java:2185)
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.Statement.executeQuery(Statement.java:1156)
3 Apr 2008 10:20:15:280 at com.mysql.jdbc.DatabaseMetaData.getColumns(DatabaseMetaData.java:850)
3 Apr 2008 10:20:15:280 at com.adventnet.nms.store.relational.MetaDataInfo.getMetaDataInfo(MetaDataInfo.java:339)
3 Apr 2008 10:20:15:280 at com.adventnet.nms.store.relational.RelationalUtil.initMetaInfo(RelationalUtil.java:1251)
3 Apr 2008 10:20:15:280 at com.adventnet.nms.store.relational.RelationalUtil.initMetaInfo(RelationalUtil.java:1240)
3 Apr 2008 10:20:15:295 at com.adventnet.nms.startnms.NmsMainBE.main(NmsMainBE.java:356)
3 Apr 2008 10:20:15:295 at com.adventnet.appmanager.server.startup.Nmsstarter.main(Nmsstarter.java:121)
3 Apr 2008 10:20:15:295 at com.adventnet.appmanager.server.startup.StartServer.main(StartServer.java:770)
3 Apr 2008 10:20:44:926 Schedulers did not stop properly: 25 threads stopped out of 26
3 Apr 2008 10:20:44:926 The remaining 1 threads did not stop in 15 seconds
3 Apr 2008 10:20:47:032 ManagedObjectProvider : Unbinding Failed java.rmi.ConnectException: Connection refused to host: 10.80.0.18; nested exception is:
java.net.ConnectException: Connection refused: connect
3 Apr 2008 10:20:47:032 RunProcessInterface reference for the key com.adventnet.nms.topodb.DBServer is null. Can not shutdown the module with the key com.adventnet.nms.topodb.DBServer

Any pointers would be greatly appreciated.

Thanks,

Mark.