can not log in an accounts.openerp.com

[ViktorNagy]

I've tried to create a new account at accounts.openerp.com, but it fails:

Traceback (most recent call last):
  File "/home/odoo/src/web/saas-2/addons/web/http.py", line 325, in dispatch
    response["result"] = self._call_function(**self.params)
  File "/home/odoo/src/web/saas-2/addons/web/http.py", line 174, in _call_function
    return self.func(*args, **kwargs)
  File "/home/odoo/src/web/saas-2/addons/web/http.py", line 1060, in nfunc
    return checked_call(request.db, *args, **kwargs)
  File "/home/odoo/src/server/saas-2/openerp/service/model.py", line 111, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/odoo/src/web/saas-2/addons/web/http.py", line 1052, in checked_call
    return func(*a, **kw)
  File "/home/odoo/src/custom/private/openerp_enterprise/controllers/main.py", line 278, in exists
    registry = RegistryManager.get(db)
  File "/home/odoo/src/server/saas-2/openerp/modules/registry.py", line 207, in get
    update_module)
  File "/home/odoo/src/server/saas-2/openerp/modules/registry.py", line 223, in new
    registry = Registry(db_name)
  File "/home/odoo/src/server/saas-2/openerp/modules/registry.py", line 78, in __init__
    cr = self.db.cursor()
  File "/home/odoo/src/server/saas-2/openerp/sql_db.py", line 479, in cursor
    return Cursor(self._pool, self.dbname, serialized=serialized)
  File "/home/odoo/src/server/saas-2/openerp/sql_db.py", line 177, in __init__
    self._cnx = pool.borrow(dsn(dbname))
  File "/home/odoo/src/server/saas-2/openerp/sql_db.py", line 372, in _locked
    return fun(self, *args, **kwargs)
  File "/home/odoo/src/server/saas-2/openerp/sql_db.py", line 435, in borrow
    result = psycopg2.connect(dsn=dsn, connection_factory=PsycoConnection)
  File "/usr/local/lib/python2.7/dist-packages/psycopg2/__init__.py", line 164, in connect
    conn = _connect(dsn, connection_factory=connection_factory, async=async)
OperationalError: FATAL: database "None" does not exist