Symptoms
In "%SB_DIR%\_logs\DBUpdaterUtil.log" file following errors persist:Critical SWsoft.SiteBuilder.Utils.DBUpdaterUtil.DBUpdater [] License receive failed and SWsoft.SiteBuilder.Utils.DBUpdaterUtil.Program [] Fail to receive upgraded license
where %SB_DIR% is Sitebuilder installation directory.
Resolution
1. Upload following utility http://download1.swsoft.com/SiteBuilder/Windows/4.0/121081.exe into "%SB_DIR%\Utils\" directory.2. Execute it.
3. Run upgrade process again.