Cannot start Alfresco after 3 months

[chrizz_msweb]

Hi,

I have installed Alfresco for 3 months. Then I create a database backup using NaviCat.
I turn off the Alflresco server (only MySQL running) , then export the dabase using Navicat.
After the export complete, i restart the machine and start Alfresco Server again.

Now the Alfresco server cannot work. The Alfresco Server window suddenly dissapear automatically, only MySQL window are open. MySQL are work (I try it from NaviCat). The text at MySQL window are:
InnoDB: the log sequence number in the ib_logfiles!
090929 15:20:14 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files…
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer…
090929 15:20:14 InnoDB: Started; log sequence number 0 46409
090929 15:20:14 [Note] Event Scheduler: Loaded 0 events
090929 15:20:14 [Note] C:\Alfresco\mysql\bin\mysqld: ready for connections.
Version: '5.1.35-community' socket: '' port: 3306 MySQL Community Server (GPL
)

There's no new log at Alfresco folder. The log at Alfresco/Tomcat/log folder are empty (there's 5 new file, but the size are 0 kb).

What should I do to make it work again?

[jayjayecl]

I assume you are running it on a Windows server.
How do you start Alfresco ?
Can you try running it from a command prompt and tell us what are the log traces when you do so ?

[chrizz_msweb]

No, it on Win XP.
I start it from alf_start.bat,  how to run it from command prompt?

[chrizz_msweb]

When i start alf_start.bat,   the Tomcat window suddenly disappear (the MySQL is fine).
It also disappear if i run tomcat directly from Alfresco/Tomcat/Bin/Startup.bat,    my firewall is already off
Where can i found the error log?
It's empty at Alfresco/Tomcat/log   ( 0 kb)

Thax

[chrizz_msweb]

any help?
I do not know what to do, there's no error log.
Or maybe there's other log in another place?