Attempt to fix some tracebacks

server/openslides/agenda/models.py

@@ -432,6 +432,7 @@ class SpeakerManager(models.Manager):
         """
         if isinstance(user, AnonymousUser):
             raise OpenSlidesError("An anonymous user can not be on lists of speakers.")
+
         if self.filter(
             user=user, list_of_speakers=list_of_speakers, begin_time=None
         ).exists():

server/openslides/users/views.py

@@ -847,6 +847,10 @@ class WhoAmIDataView(APIView):
             user_full_data = async_to_sync(element_cache.get_element_data)(
                 self.request.user.get_collection_string(), user_id
             )
+            if user_full_data is None:
+                return Response(
+                    {"detail": "Cache offline, could not fetch user"}, status=500
+                )
             auth_type = user_full_data["auth_type"]
             user_data = async_to_sync(element_cache.restrict_element_data)(
                 user_full_data, self.request.user.get_collection_string(), user_id

server/openslides/utils/autoupdate.py

@@ -8,6 +8,7 @@ from channels.layers import get_channel_layer
 from django.db.models import Model
 from mypy_extensions import TypedDict
 
+from .auth import UserDoesNotExist
 from .cache import ChangeIdTooLowError, element_cache, get_element_id
 from .projector import get_projector_data
 from .timing import Timing
@@ -303,6 +304,15 @@ class AutoupdateBundleMiddleware:
 
 async def get_autoupdate_data(
     from_change_id: int, user_id: int
+) -> Tuple[int, Optional[AutoupdateFormat]]:
+    try:
+        return await _get_autoupdate_data(from_change_id, user_id)
+    except UserDoesNotExist:
+        return 0, None
+
+
+async def _get_autoupdate_data(
+    from_change_id: int, user_id: int
 ) -> Tuple[int, Optional[AutoupdateFormat]]:
     """
     Returns the max_change_id and the autoupdate from from_change_id to max_change_id