Hello friend how are you?

Sorry for my bad English.

Today I have a good running Zimbra Open Source 7.0 on Debian 5.1 x32

You need to migrate to Zimbra 7.1.2 Open Source 5.0.8 on Debian x64

I'm trying to use the Migration Wizard Zimbra's own accounts.
I access the accounts of the current server, I find the accounts, select all,
however it only downloads the bills, and no matter the messages.

Where can I be wrong? Or where I can get the logs of this?

The logs in / var / log / zimbra.log nothing appears.

Please someone give me a light.