add new forum not working

[apaczi@…]

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "build/bdist.linux-i686/egg/tracdiscussion/core.py", line 72, in process_request
  File "build/bdist.linux-i686/egg/tracdiscussion/api.py", line 32, in render_discussion
  File "build/bdist.linux-i686/egg/tracdiscussion/api.py", line 404, in _do_action
  File "build/bdist.linux-i686/egg/tracdiscussion/api.py", line 932, in add_forum
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.4/site-packages/pyPgSQL/PgSQL.py", line 3072, in execute
    raise OperationalError, msg
OperationalError: ERROR:  type "u" does not exist