Traceback (most recent call last):
  File "/var/lib/python-support/python2.4/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/var/lib/python-support/python2.4/trac/web/main.py", line 184, in dispatch
    req.session = Session(self.env, req)
  File "/var/lib/python-support/python2.4/trac/web/session.py", line 52, in __init__
    self.promote_session(sid)
  File "/var/lib/python-support/python2.4/trac/web/session.py", line 147, in promote_session
    (self.req.authname, sid))
  File "/var/lib/python-support/python2.4/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/var/lib/python-support/python2.4/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.4/site-packages/MySQLdb/cursors.py", line 163, in execute
    self.errorhandler(self, exc, value)
  File "/usr/lib/python2.4/site-packages/MySQLdb/connections.py", line 35, in defaulterrorhandler
    raise errorclass, errorvalue
IntegrityError: (1062, "Duplicate entry 'neuro-1-email' for key 1")