TokenGenerationLimitException: Can't generate more than one token per hour.
  File "metabrainz/users/views.py", line 283, in regenerate_token
    return jsonify({'token': current_user.generate_token()})
  File "metabrainz/model/user.py", line 202, in generate_token
    return Token.generate_token(self.id)
  File "metabrainz/model/token.py", line 46, in generate_token
    raise TokenGenerationLimitException("Can't generate more than one token per hour.")
AttributeError: 'TokenGenerationLimitException' object has no attribute 'message'
  File "flask/app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "flask/app.py", line 1952, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "flask/app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "flask/_compat.py", line 39, in reraise
    raise value
  File "flask/app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "flask/app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "flask_login/utils.py", line 261, in decorated_view
    return func(*args, **kwargs)
  File "metabrainz/users/views.py", line 287, in regenerate_token
    return jsonify({'error': e.message}), 429  # https://tools.ietf.org/html/rfc6585#page-3