If it still fails, install the community-made directly into your Frosty manager plugin folder. How to Apply Frosty Mods
After selecting the game, a dialog box will prompt you for the encryption key. Carefully copy the full key string 0B0E04030409080C010708010E0B0B02 and paste it into the box. Ensure there are no extra spaces at the beginning or end, as that can cause errors. fifa 18 frosty mod manager encryption key
This frequently happens if your game version doesn't match the mod parameters. Ensure your FIFA 18 installation is fully updated through your game launcher before generating your Frosty profile. If it still fails, install the community-made directly