error during db upgrade

[pokerpizza]

Hi guys,
I have a problem after installing beta 7.
during the db upgrade I receive the following error:
http://www.abload.de/thumb/hm_erroriy57.jpg (http://www.abload.de/image.php?img=hm_erroriy57.jpg)
My system:
Windows 7 Ultimate x64
Postgres 8.3

With beta6 everything worked perfectly, I hope my database has not been messed up.

Would be very pleased, if someone have an advice for me.

[Patvs]

Can you reindex the playervsplayer indexes in Database Control Panel.
If that doesn't fix it.. create a NEW database... (because the error can be caused by a corrupt database)