SageTV community sites doesn't works

[tim@…]

When visiting sites (sub sites) within the SageTV community I receive the error :

Trac detected an internal error:
database is locked

Python traceback

Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 531, in cgi_start
    real_cgi_start()
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 526, in real_cgi_start
    dispatch_request(path_info, args, req, env)
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 433, in dispatch_request
    req.session = Session.Session(env, req, newsession)
  File "/usr/lib/python2.3/site-packages/trac/Session.py", line 51, in __init__
    self.get_session(sid)
  File "/usr/lib/python2.3/site-packages/trac/Session.py", line 114, in get_session
    self.update_sess_time()
  File "/usr/lib/python2.3/site-packages/trac/Session.py", line 99, in update_sess_time
    self['last_visit'] = sess_time
  File "/usr/lib/python2.3/site-packages/trac/Session.py", line 59, in __setitem__
    return self.set_var(key, val)
  File "/usr/lib/python2.3/site-packages/trac/Session.py", line 138, in set_var
    self.purge_expired()
  File "/usr/lib/python2.3/site-packages/trac/Session.py", line 175, in purge_expired
    "  AND var_value  < %i)", mintime)
  File "/usr/lib/python2.3/site-packages/sqlite/main.py", line 237, in execute
    self.con._begin()
  File "/usr/lib/python2.3/site-packages/sqlite/main.py", line 503, in _begin
    self.db.execute("BEGIN")
OperationalError: database is locked

[Emmanuel Blot]

This is a known issue, duplicate of #1661 and some others one, see also #3503