Welp, I did indeed downgrade to 2.11 and the SQL error is gone. I'm getting a java cast class bootstrap error now. As for restoring from backup, I can do that for the application server, labkey itself. However, it's a long story but there is no backup of the database server, that's one reason I am trying so hard to fix it. I have attached what I get in the log file when I start up tomcat, maybe that will show something helpful. I really appreciate all of your help on this. Thanks!