Sims 3 generations crash after 15min, please help!

Hi,
I have downloaded the sims 3 Ambitions, World Adventures, High End Loft Stuff and now Generations
i used the Ultimate fix on all of them before seeing that i should have only applied the crack to generations. The game starts up fine and runs smoothly until about 15 minutes in where it slowly crashes onto my desktop with an error message asking me if I want to debug. I think i may need the original files (TSLHOST etc) to put them back into the other expansion pack folders to rectify my mistake? The ultimate fix says it has the original files but I can't find them in there.
Is there any way I can avoid reinstalling the packs as I no longer have the ISO files

Erm, I'll upload the original files for you later, I need to re-install the game again.

thank you so much! I don't know a lot about this stuff so is it right that i just replace all the original files and then just do the last generations crack and not the base game crack or any of the other expansion pack cracks? also i don't know if this makes a difference but after doing the fix there was no update available on the launcher
thanks again

Yeah, you wont be able to update normally when you replace the files to the cracked ones as you need the original TSLHOST to update the game

Just so I can be clear: once I have the original files i just replace them in the base game and the expansion packs. then i apply the crack on the base game and only the first part of the generations crack. then i update the game from the launcher and then i do the generations crack again?
the strange thing is the game didnt crash when i was using world adventures and had only applied the base game crack. it only started happening when i started with Twinbrook, and so that was when i applied all the cracks for all the expansion packs...
I hope this message is clear! Thank you so much for all your help, I'm dying to play with generations and its really frustrating!