The Sims 3 - World Adventures installation problems

I downloaded The sims 3 World Adventures, I've done everything from the installation guide, and when i click on Crack 3, and I click on 'Sims3_1.2.7.00002_from_1.0.631.00002.exe', the installation window appears, and also a grey box on the upper left corner of my screen that says gorilla, but then my installation window disappears, and it says page not found and also invalid file . Then i have to close the installation window because i cannot install.

//EDIT

Oh and i can't apply the fix there because the game has not been installed yet

Hello,

Please install our Late Night and Outdoor Living Stuff expansions from www.games4theworld.org .
When you're done installing those, apply this fix: https://games4theworld.forumotion.com/t752-the-sims-3-latest-fix-should-fix-most-of-your-problems

Now, install WA, but skip all the steps in the Installation Guide that require you to apply the updates from "Crack 3". So, start and install the game.
When you're done installing the game, run it and see if it starts. If not, just apply the fix again: https://games4theworld.forumotion.com/t752-the-sims-3-latest-fix-should-fix-most-of-your-problems