every time I start the game it crashes at Performing Pops and Locks in the loading screen. I have been able to successfully start Body Shop numerous times. No custom content at all now.
I had this happen when I only had Pets installed. I wish I could offer some better advice. I just bought Seasons and installed it and that fixed the problem.
the computer shuts off randomly so I can't use it now.
That most likely means you need a new power supply in that computer. It will probably die soon.