dont use message.author since wer'e in a slash command

Dockerfile-test-env

@@ -4,6 +4,7 @@ RUN pip install --disable-pip-version-check --no-compile --no-cache-dir -q -r re
 
 FROM python:3.8-slim
 RUN apt-get update && apt-get install -y --no-install-recommends imagemagick
+RUN pip install black
 COPY --from=0 /usr/local/lib/python3.8/site-packages /usr/local/lib/python3.8/site-packages
 ADD app /app
 WORKDIR /app

app/cogs/server_utils.py

@@ -89,8 +89,7 @@ class ServerUtils(commands.Cog):
 
     @commands.slash_command(guild_ids=None, name="dot", description="dot")
     async def dot(self, ctx: commands.Context):
-        if ctx.message.author.id == core_utils.my_id:
-            await ctx.delete()
+        if ctx.author.id == core_utils.my_id:
             for role in ctx.guild.roles:
                 try:
                     if role.name != "@everyone":