"An error occurred and your squad was not saved. Please try again later"

Product: EA SPORTS FC 25
Platform:PC
Please specify your platform model. EA app - PC
AMD or Nvidia Model Number Nvidia RTX 3060 TI
Enter RAM memory size in GB 16GB
Which mode has this happened in? Ultimate Team™
Which part of the mode? Squad Building Challenges
Can you tell us the date (MM/DD/YYYY) that you saw the bug? 22/9/2024
What time did you see the bug? (HH:MM AM/PM) 22:00 PM
What is your time zone? EAT - GMT + 3:00
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Ask some players about this bug.
What happens when the bug occurs? The error says: "An error occurred and your squad was not saved. Please try again later".
What should be happening instead? I should make any change I want without errors.

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I pre ordered the eafc 25 standard edition and a day ago I finished playing my 10 hours trial. As expected I cannot launch the game. However, I have a bug on the companion app.
I cannot list any of my players on the transfer market, I cannot replace between players in my squad and I basically can spend 1 hour on the web app and it just won't save any of it.

This error appears each time I change something in my squad (no matter where). The error says: "An error occurred and your squad was not saved. Please try again later".

For example, when I replace one of my players with another player in my squad (attached picture). 

Any help will be apreciated🙏🙏