I followed the steps but after vampires it started opening up with an error

Hello, so I started with the sims 4 and I installed work and together and then city life and I started the game every time just in case I got an error but I didn't so it was okay, then I installed the vampire toddler pack and things went downhill, I clicked the start button just in case before I rename the game file and an error popped up saying I'm missing or damaged files. Then I renamed the file and thought maybe if I do the rest of the instructions until the end with the last update. I did that but I still have the same error but in spanish as said for toddler stuff pack. So, to be honest, I don't know what went wrong, maybe cause I tried opening the game every time or maybe I need to uninstall the whole game and try again. But I just need some help.

Just delete "Game" folder and extract it again from your last downloaded release.

So I did what you said and deleted the "Game" file and I extracted the last download and It didn't work, the error is still there and it's still in spanish.

In addition to what @anadius1 said.
Download and install Parenthood and Fitness.
Delete both Game and Game_ folders
Recopy the folder Game from Fitness again.