Since the complete uninstall and reinstall of the game on your device is the acid test of whether any problems loading your town reside with the app or your town, you've done all you can do at your end to try and recover the town so you'll have to open a support ticket with EA to have them investigate the issue.
Go to https://help.ea.com/contact-us
Log in with your Origin ID
Type "Simpsons Tapped Out" in to the search bar titled "search all products"
Click on the "Simpsons Tapped Out" logo. Some popular troubleshooting options will appear in the window to the right.
If these don't solve your problem, click the "Next" button that's located below the initial recommendations box.
Select your appropriate platform
The window to the right will update with some more relevant troubleshooting guides. If none of these are relevant to your issue, click "Next" again.
On the next screen click on the "select a topic" scroll bar and scroll down to the issue relevant to you.
Insert some more details in to the box below and then click on "Next"
Depending on the time of day, your location and the nature of your problem you will then have a range of options to contact EA. These could include links to support articles relevant to your problem, a callback from EA; a live chat with an agent, or the ability to email EA Support.
On a side note, would you happen to be playing on an Apple device? They seem to be the ones most affected by this issue with this update.
