BUG #7875: org.postgresql.util.PSQLException: ERROR: column reference "e_raci_obj" is ambiguous

The following bug has been logged on the website:

Bug reference:      7875
Logged by:          senthil
Email address:      senthinil@gmail.com
PostgreSQL version: 9.1.0
Operating system:   Centos 6.3
Description:        =


Hi

I have taken a backup of esis database which runs in postgres 8.3.10 and
restored the db in Postgres 9.1.0. When I my web application and access a
module in it, it throws me the application exception :
org.postgresql.util.PSQLException: ERROR: column reference "e_raci_obj" is
ambiguous

Please lemme know how to resolve this issue.

Thanks in advance
Senthil