That looks like (some of) the data files for the S1 tracks are invalid / corrupted / not unlocked properly.
One thing you could try is run LFS as administrator, lock LFS and unlock LFS again. See if that makes a difference. If it does then LFS is installed with admin privileges, which is wrong. In that case you should install LFS again, to a normal folder, outside of Program Files and run with your normal user account.
Hope that helps (coz i'm not sure). Scawen may otherwise be able to tell you more tomorrow.