HI I bought the game pro cycling manager 13 by download, however I can not play the armed mod, because the following error appears when I try to look for a race "impossible to join the game the __ ___ 01 2013 file has been modified and it does not match the file on the server" Can you help...

HI I bought the game pro cycling manager 13 by download, however I can not play the armed mod, because the following error appears when I try to look for a race "impossible to join the game the __ ___ 01 2013 file has been modified and it does not match the file on the server" Can you help...