diff --git a/cogs/assignments.py b/cogs/assignments.py
index c61697f..2dcdef2 100644
--- a/cogs/assignments.py
+++ b/cogs/assignments.py
@@ -430,7 +430,7 @@ class AssignmentsCog(commands.Cog):
                 super().__init__(timeout=300)
 
             async def interaction_check(self, interaction: discord.Interaction) -> bool:
-                return interaction.user == ctx.author
+                return interaction.user == ctx.user
 
             async def on_timeout(self) -> None:
                 await self.message.delete(delay=0.1)
diff --git a/cogs/mod.py b/cogs/mod.py
index ab745d4..6d409a1 100644
--- a/cogs/mod.py
+++ b/cogs/mod.py
@@ -1,7 +1,6 @@
 import discord
 from discord.ext import commands
 from utils import Student, get_or_none, BannedStudentID
-import orm
 
 
 class Mod(commands.Cog):
@@ -24,7 +23,7 @@ class Mod(commands.Cog):
                 associated_account=member.id,
             )
 
-        await member.ban(reason=f"Banned ID {ban.student_id} by {ctx.author}")
+        await member.ban(reason=f"Banned ID {ban.student_id} by {ctx.user}")
         return await ctx.respond(
             f"\N{white heavy check mark} Banned {ban.student_id} (and {member.mention})", ephemeral=True
         )
@@ -44,7 +43,7 @@ class Mod(commands.Cog):
             return await ctx.respond(f"\N{white heavy check mark} Unbanned {student_id}. No user to unban.")
         else:
             try:
-                await ctx.guild.unban(discord.Object(user_id), reason=f"Unbanned by {ctx.author}")
+                await ctx.guild.unban(discord.Object(user_id), reason=f"Unbanned by {ctx.user}")
             except discord.HTTPException as e:
                 return await ctx.respond(
                     f"\N{white heavy check mark} Unbanned {student_id}. Failed to unban {user_id} - HTTP {e.status}."
diff --git a/cogs/timetable.py b/cogs/timetable.py
index 29d55d4..21e3e5f 100644
--- a/cogs/timetable.py
+++ b/cogs/timetable.py
@@ -1,6 +1,5 @@
-import asyncio
 import sys
-from typing import Optional, Union, Dict, Callable
+from typing import Optional, Union, Dict
 
 import discord
 from discord.ext import commands, tasks
@@ -239,7 +238,7 @@ class TimeTableCog(commands.Cog):
             date = datetime.now()
 
         text = self.format_timetable_message(date)
-        view = TimeTableDaySwitcherView(ctx.author, self, date)
+        view = TimeTableDaySwitcherView(ctx.user, self, date)
         view.update_buttons()
         await ctx.respond(text, view=view)
 
diff --git a/cogs/verify.py b/cogs/verify.py
index 8f16f4c..e1dabdd 100644
--- a/cogs/verify.py
+++ b/cogs/verify.py
@@ -14,19 +14,19 @@ class VerifyCog(commands.Cog):
         """Verifies or generates a verification code"""
 
         try:
-            student: Student = await Student.objects.get(user_id=ctx.author.id)
+            student: Student = await Student.objects.get(user_id=ctx.user.id)
             return await ctx.respond(f"\N{cross mark} You're already verified as {student.id}!", ephemeral=True)
         except orm.NoMatch:
             pass
 
         role = discord.utils.find(lambda r: r.name.lower() == "verified", ctx.guild.roles)
         channel = discord.utils.get(ctx.guild.text_channels, name="verify")
-        if role in ctx.author.roles:
+        if role in ctx.user.roles:
             if role and role < ctx.me.top_role:
-                await ctx.author.remove_roles(role, reason=f"Auto de-verified")
+                await ctx.user.remove_roles(role, reason=f"Auto de-verified")
                 if channel:
                     try:
-                        await ctx.author.send(
+                        await ctx.user.send(
                             f"You have been automatically de-verified. Please re-verify by going to {channel.mention} "
                             f"and typing </verify:{ctx.command.id}>."
                         )
diff --git a/main.py b/main.py
index 9dd5773..089f16a 100644
--- a/main.py
+++ b/main.py
@@ -28,7 +28,7 @@ async def on_connect():
 @bot.listen("on_application_command_error")
 async def on_application_command_error(ctx: discord.ApplicationContext, error: Exception):
     await ctx.respond("Application Command Error: `%r`" % error)
-    raise error
+    raise error from None
 
 
 @bot.listen("on_command_error")
@@ -36,7 +36,7 @@ async def on_command_error(ctx: commands.Context, error: Exception):
     if isinstance(error, commands.CommandNotFound):
         return
     await ctx.reply("Command Error: `%r`" % error)
-    raise error
+    raise error from None
 
 
 @bot.listen("on_application_command")