Unknown integration just sounds like discord is not recognizing your slash commands.

Can you provide more code to show how you initialized your slash commands? Are you using the CommandTree ?

How do i make a working slash command in discord.py this thread might be able to help you out a bit more. You are not producing an error traceback anyways as discord does not recognize your slash commands and therefore does not send a request to the bot.

It sounds like your slash commands are set up wrong. Your prefix should not be set to the / character. There is a proper way to initialize discord slash commands.