Traceback (most recent call last):

  File "/home/odoo/src/odoo/13.0/odoo/http.py", line 624, in _handle_exception

    return super(JsonRequest, self)._handle_exception(exception)

  File "/home/odoo/src/odoo/13.0/odoo/http.py", line 310, in _handle_exception

    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])

  File "/home/odoo/src/odoo/13.0/odoo/tools/pycompat.py", line 14, in reraise

    raise value

  File "/home/odoo/src/odoo/13.0/odoo/http.py", line 669, in dispatch

    result = self._call_function(**self.params)

  File "/home/odoo/src/odoo/13.0/odoo/http.py", line 350, in _call_function

    return checked_call(self.db, *args, **kwargs)

  File "/home/odoo/src/odoo/13.0/odoo/service/model.py", line 94, in wrapper

    return f(dbname, *args, **kwargs)

  File "/home/odoo/src/odoo/13.0/odoo/http.py", line 339, in checked_call

    result = self.endpoint(*a, **kw)

  File "/home/odoo/src/odoo/13.0/odoo/http.py", line 915, in __call__

    return self.method(*args, **kw)

  File "/home/odoo/src/odoo/13.0/odoo/http.py", line 515, in response_wrap

    response = f(*args, **kw)

  File "/home/odoo/src/odoo/13.0/addons/web/controllers/main.py", line 1326, in call_button

    action = self._call_kw(model, method, args, kwargs)

  File "/home/odoo/src/odoo/13.0/addons/web/controllers/main.py", line 1314, in _call_kw

    return call_kw(request.env[model], method, args, kwargs)

  File "/home/odoo/src/odoo/13.0/odoo/api.py", line 387, in call_kw

    result = _call_kw_multi(method, model, args, kwargs)

  File "/home/odoo/src/odoo/13.0/odoo/api.py", line 374, in _call_kw_multi

    result = method(recs, *args, **kwargs)

  File "/home/odoo/src/enterprise/13.0/social/models/social_live_post.py", line 49, in action_retry_post

    self._post()

  File "/home/odoo/src/enterprise/13.0/social_twitter/models/social_live_post.py", line 64, in _post

    twitter_live_posts._post_twitter()

  File "/home/odoo/src/enterprise/13.0/social_twitter/models/social_live_post.py", line 79, in _post_twitter

    params['media_ids'] = ','.join(images_attachments_ids)

TypeError: sequence item 0: expected str instance, NoneType found