We are using succesfully openxchange 0.8.2.1 from 6 months but today we 
got this error after user login:
org.postgresql.util.PSQLException: The column index is out of range.
       at 
org.postgresql.jdbc1.AbstractJdbc1ResultSet.checkResultSet(AbstractJdbc1ResultSet.java:825) 

       at 
org.postgresql.jdbc1.AbstractJdbc1ResultSet.getString(AbstractJdbc1ResultSet.java:200) 

       at 
com.openexchange.thread.ComfireThread.makeOwnResultSet(ComfireThread.java:1297) 

       at 
com.openexchange.thread.ComfireThread.fireUpSQL(ComfireThread.java:1259)
       at 
com.openexchange.thread.ComfireThread.parseSQLObjects(ComfireThread.java:745) 

       at 
com.openexchange.thread.ComfireThread.checkVars(ComfireThread.java:609)
       at 
com.openexchange.thread.ComfireThread.validateSession(ComfireThread.java:544) 

       at com.openexchange.thread.ComfireThread.run(ComfireThread.java:156)
       at java.lang.Thread.run(Thread.java:534)
Oct 05 09:15:04 vm-openxchange openexchange: ERROR: SQL failed:
SELECT user_right FROM prg_dates WHERE user_right LIKE 'admbozzetti' AND 
intfield01 = 0

The user logged in but couldn't see any application.
After restarting openxchange the problem disappeared. The database seems 
not have problem.
It's very stange, any idea about the source of problem?
Thanks
Adamo Bozzetti