1.9.1.405: Build does not start - SqlDateTime overflow

There appears to be an invalid date in the database. It looks like you are you using a SQL Server database, in which case there shouldn’t be any change in v1.9.1.405 which would cause this… Are you able to download the diagnostics report from the Event Log page and send it to us (either via a direct message on this forum or to support@finalbuilder.com )?