If you WR Client writes
"Wrong NFS version or the game has crashed",
Then it is necessary for you:
1) to download WR Client once again,
As there can be small upgrades on which it was not informed in news.
2) After start of refreshed version WR Client to correct all defects about which it is told in right text window.
Most easier (and probably it is better) - reinstall game in to
empty folder.
If WR Client writes about the wrong version,
To check up the version exe a game file ("SHIFT.exe") in properties of a file.
The version should be such what is specified in header WR Client.
If WR Client writes "File ... is modified or corrupted",
Download the necessary archive with files and unsqueeze it in necessary folder.
UI archive:
http://wrecord.com/soft/wraddon/ShiftUI.zip
Pakfiles archive:
http://wrecord.com/soft/wraddon/ShiftPakfiles.zip
In these archives not all files, but the most necessary.