my fc25 stuck in TU6.1

hi, so my fc25 has been stuck on TU6.1 for no reason, for the first time i donwload this game everything was fine till the next update till TU21 everything is completely mess. i've already trying with many things to rollback my fc25 to TU21 like using FC rollback tool or downloading the TU21 itself from google, and transferring fc25 from my brother pc it's still same. when using FC Rollback tool it's updated to TU21. But when i try to logging in it's always crash always splash screen, can u help me pls? this is my first time buying this game. thank you