diff --git a/.vscode/settings.json b/.vscode/settings.json
index 47e3829..1dc3b48 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -10,8 +10,8 @@
         "ondelete"
     ],
     "python.analysis.diagnosticSeverityOverrides": {
-        "reportOptionalMemberAccess": false,
+        "reportOptionalMemberAccess": "warning",
         "reportArgumentType": "information",
         "reportAttributeAccessIssue": "warning"
     }
-}
+}
\ No newline at end of file
diff --git a/cogs/commands/set.py b/cogs/commands/set.py
index f69171a..ca3b437 100644
--- a/cogs/commands/set.py
+++ b/cogs/commands/set.py
@@ -259,8 +259,10 @@ class SetCog(commands.Cog, name="Set command."):
                 .where(col(CategoryGroup.guild_id) == interaction.guild_id)
                 .where(col(CategoryGroup.id) == int(group_id))
             )
-            group = session.scalar(stmt)
-            group.ChannelId = channel_id
+            if (group := session.scalar(stmt)) is None:
+                await interaction.response.send_message("Group or Category was not found.", ephemeral=True)
+                return
+            group.channel_id = channel_id
             session.commit()
         await interaction.send(f"Registered <#{channel_id}>.", ephemeral=True)
 
@@ -296,7 +298,8 @@ class SetCog(commands.Cog, name="Set command."):
             if (group := session.scalar(stmt)) is None:
                 await interaction.response.send_message("Group was not found.", ephemeral=True)
                 return
-            group.PadLength = length
+
+            group.pad_length = length
             session.commit()
             await interaction.response.send_message(
                 f"Category pad length set to {length} for {group.name}", ephemeral=True
@@ -328,7 +331,9 @@ class SetCog(commands.Cog, name="Set command."):
 
         with Session(engine) as session:
             stmt = select(Guild).where(col(Guild.id) == interaction.guild_id)
-            guild = session.scalar(stmt)
+            if (guild := session.scalar(stmt)) is None:
+                await interaction.response.send_message("Guild was not found.", ephemeral=True)
+                return
             guild.submission_channel = channel_id
             session.commit()
         await interaction.send(f"Registered <#{channel_id}>.", ephemeral=True)
@@ -358,8 +363,11 @@ class SetCog(commands.Cog, name="Set command."):
                 .where(col(CategoryGroup.guild_id) == interaction.guild_id)
                 .where(col(CategoryGroup.id) == int(group_id))
             )
-            group = session.scalar(stmt)
-            group.UsernameLength = length
+            if (group := session.scalar(stmt)) is None:
+                await interaction.response.send_message("Group or Category was not found.", ephemeral=True)
+                return
+
+            group.username_length = length
             session.commit()
         await interaction.response.send_message(f"Username length set to {length}.", ephemeral=True)
 
@@ -386,8 +394,10 @@ class SetCog(commands.Cog, name="Set command."):
 
         with Session(engine) as session:
             stmt = select(Guild).where(col(Guild.id) == interaction.guild_id)
-            guild = session.scalar(stmt)
-            guild.VerificationChannel = channel_id
+            if (guild := session.scalar(stmt)) is None:
+                await interaction.response.send_message("Guild was not found.", ephemeral=True)
+                return
+            guild.verification_channel = channel_id
             session.commit()
         await interaction.send(f"Registered <#{channel_id}>.", ephemeral=True)
 
diff --git a/utilities/utils.py b/utilities/utils.py
index ecb8474..caaecc1 100644
--- a/utilities/utils.py
+++ b/utilities/utils.py
@@ -398,7 +398,7 @@ async def submit_score(
         existing_score = session.scalar(stmt)
 
         if existing_score:
-            existing_score.Score = score_f
+            existing_score.score = score_f
         else:
             score_obj = Score(username=username, score=score_f, category_id=category_id)
             session.add(score_obj)