Hi,
Sorry it's been a while. This still hasn't resolved the issue even after restarting my PS5 and also Rebuilding the Database. Granted I haven't restarted my router as I am unable to, as I am at my University campus. Although on that note, I've had no trouble connecting to other EA servers such as BF2042 and F1 21. This is all via an ethernet connection is this helps.
I should say for a moment, maybe one single day about a week ago I did have access to Quick Play Multiplayer, yet now I've lost access again with the same error message.
Hope you find a solution soon!