Corrupt database after upgrade

[progdlp]

We have the premium version and I ran setup to upgrade from 3.5.1 to 4 and now I cannot access the database. Some reports work but I cannot get a device list at all now. I keep getting errors. Is there a way to rebuild the database to get rid of the invalid information without having to rework the server completely?

[progdlp]

Thank you. I have it working now.

[Hemoco]

1) restore the original database
2) see this page: http://www.lansweeper.com/forum/yaf_postst3412_Manual-database-upgrade.aspx