The Town Life Stuff expansion pack did not come with a new town. The following EP came with new towns:
Ambitions -Twinbrook
Nightlife - Bridgeport
Pets - Appaloosa Plains
Showtime - Starlight Shores
Supernatural - Moonlight Falls
Besides these, there are towns available for download on The Sims 3 store:
Riverview - free download
Barnacle Bay - purchasable with simpoints
Hidden Springs - purchasable with simpoints
Lunar Lakes - purchasable with simpoints
Lucky Palms - purchasable with simpoints
Sunlit Tides - purchasable with simpoints
Monte Vista - purchasable with simpoints
Aurora Skies - purchasable with simpoints
Any other town that appears in your game besides these, is not a town made by EA. It must have been downloaded from Exchange or created by you in Create a World.
Check the name of the town that you're having problems with, if it's not any of the ones mentioned above, than probably it's a town from Exchange with bad content. You won't be able to play it.