Ok so basically I've had the sims 2 installed on my computer for a while now and it had been running perfectly but all of a sudden the game just resets itself! All the families I made are gone, the default families in the neigborhood have gone back to how they were at the start of the game and the family bin is empty. Every time I try to enter the game it takes longer to load as if I just installed it.
I didn't download anything dodgy and I am certain that my game was updated with the latest patchesfor my Free Time expansion pack so I'm not sure what could have caused this issue.
The weird thing is that in the sims 2 folder on my computer everything is the way it was before. All my cc, pictures, videos, characters - everything is fine. I really don't know what's happening but if someone could help me get my game back I would really appreciate it.

Sims 2 Reset Neighborhood
Sims 2 Reset Game Only

This makes Sims unhappy. There's a way to fix that. First open the cheat window by holding down Ctrl + Shift + C; all three keys at once. This will pause the game and make the screen a little darker. Now type the cheat resetSim Firstname Lastname and press enter. If it did, check the game in the cloud to see if your game progress is there. Follow the steps below. Restore your last save from the Cloud. Make sure you’re logged into the account(s) that show the game with the most progress. Check the Account Manager to make sure you've logged into an account (or two). Icon to open the main menu.

When things get wonky...

…try Reset Object Sims 2 reset game only

(Debug) to fix a stuck or buggy Sim or object!

Why reset a Sim or object?
Sometimes a Sim or object will get ‘buggy’. This means that it stops functioning properly or freezes.

How do I reset (debug) my Sim or object?

Options involving leaving the lot:
Many times if a Sim or object is not functioning properly, freezes, or your household/lot becomes unresponsive, you can:
• Leave the lot and go to the “Manage Worlds” (world map). The game may or may not allow your to save when you exit the lot, depending on what is not responding. Then return to the lot. See if the game&/or object/Sim is now behaving normally.
• Leave the lot and choose “Exit to Main Menu”. The game may or may not allow your to save when you exit the lot, depending on what is not responding. Then return to the lot. See if the game&/or object/Sim is now behaving normally.
• Leave the lot by choosing to “Exit Game”. The game may or may not allow your to save when you exit the lot, depending on what is not responding. Then restart your game and return to the lot. See if the game&/or object/Sim is now behaving normally.
• Try traveling with your Sim then return to the lot. See if the game&/or object/Sim is now behaving normally.

Options involving cheats:
METHOD #1 (Works on Sim or Object) | METHOD #2 (Works only on a Sim)

METHOD #1 | Reset or debug a Sim or object:

Enable Testing Cheats:
• With your lot open, press Shift+Control+C to open the cheat console box (upper left of your screen). Enter the following in the cheat code box…
testingcheats on (press enter): (Note: testingcheats true also works)
• You will see a confirmation message: “Cheats are enabled”:

Reset/debug:
• ‘Shift + click’ on the Sim or object and choose “Reset Object (Debug)” from the pie menu that pops up.

Disable Testing Cheats:
•Enter the following in the cheat code box…
testingcheats off (press enter): (Note: testingcheats false also works)
• You will see a confirmation message: “Cheats are disabled”:

METHOD 2 | Reset (debug) a Sim the simple way!

Sims 2 Reset Neighborhood

2-Steps:

Sims 2 Reset Game Only

With your lot open, press Shift+Control+C to open the cheat console box (upper left of your screen). Enter the following in the cheat code box…
Enter the following in the cheat code box…
resetsim <First name> <Last name> (press enter)
(For example with Bella Goth it would be resetsim Bella Goth.)

– Thanks, PugLove888