FC 25 WEB APP QUICK SELL ERROR

I've been playing the game for over 1,000 hours. Until two days ago, I had no problems with the web app. Now, I can't perform a quick sell at all. There's no problem with performing a quick sell in the game. There's no problem with performing a quick sell in the mobile app of the web app, but I can't perform a quick sell on the PC. It gives me an error anyway.  PLEASE SOLVE MY PROBLEM.