First close all programs " cheat engine, live editor, modmanager, ea app and then make sure you have cheatengine 7.3 or upper installed on the computer, launch and try on EA App, find FIFA 23 in your game library and click the "Manage" button, then "View Properties", and write this inside the space "Advanced launch options": -dataPath FIFAModData , and after that go offline mode.
Then open live editor and launch mode manager tool , launch the game with mod manager tool if you want using mods.