[My save won't can't be loaded]

This is the same error I have, this is trying to load game, xbox series x, xbox one or on phone, I can't even save 1 file no more, it's like it don't delete old saves from cloud so eventually it fills storage up on cloud server and you can no longer save game anymore, I have given up now until its fixed, let me add this was taken on my phone not xbox, my phone has over 300gb left storage, my xbox does same has plenty storage, it's just messed up