diff --git a/bot/__main__.py b/bot/__main__.py
index d193287..4dfa41c 100644
--- a/bot/__main__.py
+++ b/bot/__main__.py
@@ -24,7 +24,7 @@ def main():
         logger.critical(f"Failed to load configuration: {e}")
         return
 
-    if not config.discord_token:
+    if not config.discord.token:
         logger.critical("Discord token not found! Set DISCORDBOT_DISCORD_TOKEN env var or config.yaml")
         return
 
@@ -32,7 +32,7 @@ def main():
     bot = ComfyUIBot(config)
     
     try:
-        bot.run(config.discord_token)
+        bot.run(config.discord.token)
     except KeyboardInterrupt:
         logger.info("Bot stopped by user.")
     except Exception as e:
diff --git a/bot/bot.py b/bot/bot.py
index df6134c..f056526 100644
--- a/bot/bot.py
+++ b/bot/bot.py
@@ -31,12 +31,12 @@ class ComfyUIBot(commands.Bot):
         self.config = config
         
         # Database
-        self.repository = Repository(config.database_url)
+        self.repository = Repository(config.database.url)
         
         
         # ComfyUI Clients
-        self.comfy_client = ComfyUIClient(base_url=config.comfyui_url)
-        self.comfy_ws = ComfyUIWebSocket(base_url=config.comfyui_url)
+        self.comfy_client = ComfyUIClient(base_url=config.comfyui.url)
+        self.comfy_ws = ComfyUIWebSocket(base_url=config.comfyui.url)
         
         # Services
         from .services.delivery import DeliveryService
diff --git a/bot/services/permissions.py b/bot/services/permissions.py
index 13b676c..da69b84 100644
--- a/bot/services/permissions.py
+++ b/bot/services/permissions.py
@@ -74,8 +74,9 @@ class PermissionService:
 def require_permission(level: str):
     async def predicate(interaction: discord.Interaction):
         if not interaction.guild:
-            return True # DMs are always allowed/handled differently? Or restrict? 
-                        # For now, let's assume commands needing permissions are guild-only.
+            await interaction.response.send_message("⛔ This command cannot be used in DMs.", ephemeral=True)
+            return False
+        
         
         # We need to access the bot instance to get the permission service
         bot = interaction.client
diff --git a/discordsend_utils/discord_api.py b/discordsend_utils/discord_api.py
index 556d0f3..f7621b6 100644
--- a/discordsend_utils/discord_api.py
+++ b/discordsend_utils/discord_api.py
@@ -11,6 +11,7 @@ import logging
 from io import BytesIO
 from typing import Any, Dict, List, Optional, Tuple
 
+import json
 import requests
 
 # Get logger for this module
@@ -220,7 +221,7 @@ class DiscordWebhookClient:
                 if files:
                     response = requests.post(
                         self.webhook_url,
-                        data={"payload_json": str(data)} if data else None,
+                        data={"payload_json": json.dumps(data)} if data else None,
                         files=files,
                         timeout=60
                     )