Catch NotFound errors when trying to delete the invocation message when cleaning

This often happens during a raid, when an int e script is added to ban & clean messages. Since the invocation
message will be deleted on the first run, we should except subsequent NotFound errors.

1 files changed, 6 insertions, 2 deletions

diff --git a/bot/exts/utils/clean.py b/bot/exts/utils/clean.py
index 8acaf9131..cb662e852 100644
--- a/bot/exts/utils/clean.py
+++ b/bot/exts/utils/clean.py
@@ -3,7 +3,7 @@ import random
 import re
 from typing import Iterable, Optional
 
-from discord import Colour, Embed, Message, TextChannel, User
+from discord import Colour, Embed, Message, TextChannel, User, errors
 from discord.ext import commands
 from discord.ext.commands import Cog, Context, group, has_any_role
 
@@ -115,7 +115,11 @@ class Clean(Cog):
 
         # Delete the invocation first
         self.mod_log.ignore(Event.message_delete, ctx.message.id)
-        await ctx.message.delete()
+        try:
+            await ctx.message.delete()
+        except errors.NotFound:
+            # Invocation message has already been deleted
+            log.info("Tried to delete invocation message, but it was already deleted.")
 
         messages = []
         message_ids = []