World Adventures EP Validation Error

Hey guys.
so i have AGAIN problem with The sims 3, correctly to install world adventures EP, added screen shot, hopefully someone had gone true this and can give me advise how to get this problem solved.

//EDIT

Here is a solution if anybody ever has this problem! 

'go to the application> the sims 3> show package content> content> resources> transgaming> c-drive> program files> electronic arts> the sims 3> game> Bin> Then open/ search (Default.ini) with text edit. Scroll all the way down to the bottom where it says GameVersion = 1.8.25.003001 change the end one to 7 or whatever works for you like this GameVersion = 1.8.25.003007 then close and save'

Glad you were able to find the problem! Also thanks for providing your solution for others. :]