Retrieve a deactivated ad on Le Bon Coin

Hello,
I found a house for rent but on the day of the visit the owner had just signed the lease with someone else; following that, he showed me another one that suits me! Unfortunately, I lost his contact information which was on the first ad; how can I find this deactivated ad to reach him knowing that he is doing renovations and I would like to know how it’s going? Thank you for the response as it is urgent!