Update app.py

app.py

@@ -71,5 +71,35 @@ async def generate(ctx, *description):
                 image_binary.seek(0)
                 await ctx.send(file=discord.File(fp=image_binary, filename='generated_image.png'))
         else:
-            await ctx.send("An error occ
+            await ctx.send("An error occurred while generating the image. Please try again later.")
+    except Exception as e:
+        logger.error(f"Error processing the generate command: {e}")
+        await ctx.send("An error occurred while processing your request. Please try again later.")
+
+@generate.error
+async def generate_error(ctx, error):
+    if isinstance(error, commands.CommandOnCooldown):
+        await ctx.send(f"This command is on cooldown. Please try again after {int(error.retry_after)} seconds.")
+    else:
+        logger.error(f"Error in generate command: {error}")
+        await ctx.send("An error occurred. Please try again later.")
+
+@bot.command(name='setprefix')
+@commands.has_permissions(administrator=True)
+async def set_prefix(ctx, prefix: str):
+    bot.command_prefix = commands.when_mentioned_or(prefix)
+    await ctx.send(f"Command prefix changed to: {prefix}")
+
+@bot.command(name='help_custom')
+async def help_custom(ctx):
+    help_text = (
+        "Here are the commands you can use:\n"
+        "!generate <description> - Generate an image based on the description.\n"
+        "!setprefix <prefix> - Change the command prefix (admin only).\n"
+        "!help_custom - Display this help message."
+    )
+    await ctx.send(help_text)
+
+# Run the bot
+bot.run(DISCORD_TOKEN)