Hmmm. You were already running the game in debug mode? OK.
Assuming you're using Windows, go to your
My Documents\EA Games\The Sims 2\Logs.
Click on the Date Modified column to sort all the error logs by date. You should be able to find the error log that corresponds to your original Too Many Iterations error. I recently deleted all my old error logs, so I don't have an example of the naming scheme here, but I seem to remember they include the User number of the sim in the log title.
Error logs are huge (~128 kB), so don't post the whole log as an attachment, because that just annoys J.M.
. But copy and paste the first 20 or so lines into a message in this thread. Someone who's able to read error logs should be able to tell from the first 10 lines where the problem is.
The fact that you've apparently only had a jump bug start after installing a new EP suggests it's likely to be caused by an old version of a hack that you still have installed. Do you have any strange keyboard mash named .packages in your Downloads folder? (You know, things like
sadfkhrlweghbsdbngjhkewruhreawi.package?) Often old hacks get downloaded along with packaged houses and install themselves multiple times with these stupid names. I had this problem with an old version of the Phone Hack that came along with a house and was hiding in my Downloads folder.
So yeah. Find the error log, post the start of it, and then we'll be able to help you
.