If you see this error message while trying to update the iRacing software, please try and go to where you have iRacing installed (by default that is C:\Program Files (x86)\iRaccing) and right click on the file called "version_system.txt" choose Rename and change the name to something like "version_system.txt.old".

Then log back into iRacing and you should then be prompted to update. This should resolve this issue for you. If not, please let us know.