Have you tried doing it in just one file? Example:

import discord
from discord.ext import commands

intents = discord.Intents.all()
intents.members = True

bot = commands.Bot(command_prefix="!", intents=intents)


@bot.event
async def on_ready():
    print(f"My Bot is Online !")

@bot.command()
async def coucou(ctx):
    await ctx.send("You say coucou, i say coucou !")

bot.run("TOKEN")