The sims 3 pets keeps crashing

so i downloaded the sims3,late night,ambitions,fast lane,high end lot stuff and world adventures from god knows where about a year ago.then few days ago i downloaded your torrent for the sims 3 pets.i installed it like it was said in the installation guide and i downloaded the fix when you need to insert the disc while installing the game.i copyed the crack from the crack file to the folder where the game is installed and when i start it everything is good untill the load screen.it loads till the end and then crashes.please help me as soon as you can.thank you!

Are you using any mods or cc?
Do you get a message at start up saying something about an invalid game modification?
What is your patch number?