No Opponents Found in Online Modes

Hello, I just started ultimate team a couple of days ago and whenever I tried to play online, I couldn’t find opponents in every online mode (Rush, Rival, any live events). I can play squad battles, and I can access the store. I tried changing matchmaking settings as instructed in some youtube videos and I also tried restarting the game itself, my PS5 and my router.  Does anyone know how to fix it? I am on playstation 5 and I am in south korea.