Play test labs planning 2025/09

Hello, I have been participating in Labs since May. I downloaded Labs from PSN. I launched Labs today and was able to play the session today at 3 p.m. (French time).

 My problem is that I never receive an invitation by email telling me the time. I have to launch Labs hoping to find an open session like today.

Where can we find the schedule for server openings? Thank you.