Well all the files should be in there- reinstall the whole package and start a new game and test again.

I reinstalled the whole package and even the game itself, Still getting the Grand Prix Pau error. Do you have to load it in a certain country?

If i was u i would delete that race from the game, or just take it out of the files.

you can edit anyones schedule that you have downloaded just click on the spanner at start and take out races that are causing problems

If I were you I'd just delete it, but I looked and couldn't find a problem with the files, I'll upload again and see.