It's a postgresl error.
The postgresql role 'collab' used byt the collaboration services is missing.
You might have a database corruption.
You can try to restore from a backup the database:
Either the /var/pgsql directory (Postgres being stopped when you do this)
or a postgresql dump made with pg_dump or pg_dumpall
do a ls /var to see if you have any backups
Most of the problems could be realted to the db being broken
As a last resort you can try reinitializing the deviceManager postgresql DB with this command
sudo /usr/share/devicemgr/backend/wipeDB.sh
I suspect though you would loose all you Profiles in profileManager
You'd go back to factory defaults but at least it could fix you missing role...
Just a guess...Hope this helps!