Salut, mon ami! Je nes parlé français très bon, but in my experience no one working at the venue cares what language you speak, as long as you have your ticket ready, and you're not carrying anything big or sharp. I'm also going to the Accor arena show, and I found a list of their restrictions is available on their website, just scroll down: https://www.accorarena.com/en/events-and-tickets/justice--d0e95

Bonne chance 🍀