Fixes?

src/NadekoBot/Services/Database/Models/ClashWar.cs

@@ -27,6 +27,6 @@ namespace NadekoBot.Services.Database.Models
         [NotMapped]
         public ITextChannel Channel { get; set; }
 
-        public List<ClashCaller> Bases { get; set; }
+        public List<ClashCaller> Bases { get; set; } = new List<ClashCaller>();
     }
 }

src/NadekoBot/Services/Database/Models/MusicPlaylist.cs

@@ -7,6 +7,6 @@ namespace NadekoBot.Services.Database.Models
         public string Name { get; set; }
         public string Author { get; set; }
         public ulong AuthorId { get; set; }
-        public List<PlaylistSong> Songs { get; set; }
+        public List<PlaylistSong> Songs { get; set; } = new List<PlaylistSong>();
     }
 }