diff --git a/Shoko.Server/Models/SVR_GroupFilter.cs b/Shoko.Server/Models/SVR_GroupFilter.cs
index e6605a17a..5b3270b18 100644
--- a/Shoko.Server/Models/SVR_GroupFilter.cs
+++ b/Shoko.Server/Models/SVR_GroupFilter.cs
@@ -462,6 +462,8 @@ public bool EvaluateGroupFilter(CL_AnimeGroup_User contractGroup, JMMUser curUse
             if ((FilterType & (int) GroupFilterType.Directory) == (int) GroupFilterType.Directory)
                 return false;
 
+            if (contractGroup?.Stat_AllTags == null) return false;
+
             if (curUser?.GetHideCategories().FindInEnumerable(contractGroup.Stat_AllTags) ?? false) return false;
 
             // sub groups don't count
@@ -857,6 +859,8 @@ public bool EvaluateGroupFilter(CL_AnimeSeries_User contractSerie, JMMUser curUs
             if ((FilterType & (int) GroupFilterType.Directory) == (int) GroupFilterType.Directory)
                 return false;
 
+            if (contractSerie?.AniDBAnime?.AniDBAnime == null) return false;
+
             if (curUser?.GetHideCategories().FindInEnumerable(contractSerie.AniDBAnime.AniDBAnime.GetAllTags()) ??
                 false)
                 return false;