Omg Help Me Plz With New Patch

I saw that crossfire had a update so i read on it and it i thought that it was a really good so i down loaded it and when i get to the end of download it says wrong CRC has been detected What does that mean i am very upset with the new patch theres been a lot of problems going on and if that means deleting that new progam then do it i wanna play crossfire and now i cant